Vlt peer routing

Vlt peer routing. DNSE: VBT August 2014 1. VLT supports unicast routing of both IPv4 and IPv6 traffic. In a VLT domain a maximum of two switches are allowed. 1 Section OS10# show vlt 1 Domain ID : 1 Unit ID : 1 Role : primary Version : 1. Once this is done, enter the VLT domain, add the backup destination, and add the interfaces participating in VLTi. interface port-channel2 no shutdown switchport mode trunk switchport access vlan 1 switchport trunk allowed vlan 10-11,20 vlt-port OS10# show vlt 1 Domain ID : 1 Unit ID : 1 Role : primary Version : 1. As shown in the figure below, the packets are sent to either of the VLT port-channel members. Figure 3. exit. Peer-routing mismatch: No show vlt mac-inconsistency Displays inconsistencies in dynamic MAC addresses learnt between VLT peers. An L2 VTEP cannot do inter-VXLAN routing, & requires an L3 device to do it. enter the VLT domain and add the backup destination. The configuration on Dell Switches is the next : mg06-sw05#show run interface tengigabitethernet 1/45 ! interface TenGigabitEthernet 1/45 no ip address ! port VLT multicast routing. 8 Posts. This command is used to validate VLT LAG status on leaf switches in this topology. This command shows the status and active VLANs of all VLT LAGs. As an L2 gateway, this provides VXLAN<> VLAN bridging. interface ethernet1/1/25 description VLT no shutdown no switchport flowcontrol receive off! interface ethernet1/1/26 description VLT no shutdown no switchport flowcontrol receive off VLT MAC address : 00:11:22:33:44:55 IP address : fda5:74c8:b79e:1::1 Delay-Restore timer : 90 seconds Peer-Routing : Enabled Peer-Routing-Timeout timer : 0 seconds VLTi Link Status VLT Peer Unit ID System MAC Address Status IP Address Version Proxy ARP Capability on VLT Peer Nodes; VLT Nodes as Rendezvous Points for Multicast Resiliency; Configuring VLAN-Stack over VLT; IPv6 Peer Routing in VLT Domains Overview; Configure BFD in VLT Domain. vlt-port-channel 1! interface port-channel2. Sample BFD configuration in VLT domain; VXLAN on VLT; VLT Proxy Gateway. 0. It retains the corresponding local destination MAC address So using peer routing according to documentation should be just there 192. These VLT ports can be members of multiple PIM-enabled L3 VLANs for compati. As both VLT n Configure VLT LAG - peer 1 OS10(config)# interface port-channel 10 OS10(conf-if-po-10)# vlt-port-channel 1 Configure VLT LAG - peer 2 OS10(config)# interface port-channel 20 OS10( To route traffic to and from the multicast source and receiver, enable PIM on the L3 side connected to the PIM router using the ip pim sparse-mode command. These switches are doing all layer 3 Optimizes routing with VLT peer routing for Layer 3 VLANs. Virtual Link Trunking Overview. Important Points to Remember; Configuration Notes; Primary and Secondary VLT Peers; RSTP and VLT; VLT Bandwidth Monitoring; VLT and Stacking; VLT and IGMP Snooping; VLT IPv6; VLT Port Delayed Restoration; PIM-Sparse Mode Support on VLT; VLT Routing. McAfee removal on new PC and Dell warranty. 5. 0 Local System MAC address : 90:b1:1c:f4:xx:xx VLT MAC address : 00:11:22:33:44:55 IP address : fda5:74c8:xxxx:1::1 Delay-Restore timer : 1000 seconds Peer-Routing : Disabled Peer-Routing-Timeout timer : 0 seconds VLTi Link Status port-channel1000 : up VLT Peer Unit ID System Once this is done, enter the VLT domain, add the backup destination, and add the interfaces participating in VLTi. Isilon’s OneFS supports and recommends the use of jumbo frames. Implement VLT nodes as the root bridge and the backup root bridge. When you enable routing on VLT peers, you can also enable the peer routing Instructions. The Role for one switch in the VLT pair is primary , and its peer switch (not shown) is assigned the secondary role. Even is a VLT peer is not the VRRP master, it will locally forward (Layer2 or Layer3) the packet to its destination without needing to redirect traffic to the (inter-VLAN routing) or 200-300 milliseconds (Layer2). my doubt is my ARP table is not same on both switch - example vlan 10 sw1 having 10 arp entry and sw2 having 7 entry . Stacking however, can accommodate up to 6 units (On S-Series) and more (~9) on N-Series. Most devices support a max of 8, and that would likely be split between the VLT pair. In this configuration, remove each interface from Layer 2 mode with the no switchport setting for interfaces eth 1/1/47-1/1/48. The Role for one switch in the VLT pair is primary, and its peer switch (not shown) is assigned the Secondary role. 0/30 area 0 network 192. show vlt domain_id backup-link. Configuring a VLT Interconnect; Enabling VLT and Creating a Configure the VLT interconnect between S5248F-Leaf 1 and S5248F-Leaf 2. I understand that my description looks unclear, so please refer on topology diagram attached, links marked with red became blocked with MSTP. 108. Peer Routing; VLT Unicast Routing. An identical loopback IP will be configured on both peers, to serve as the Anycast IP. Leaf1A# show vlt 255 peer-routing. hello-time 1. 3 discovery-interface ethernet1/1/49 peer-routing primary-priority 1 vlt-mac 00:11:22:33:44:55 Dist-SW-01# show running-configuration interface ethernet 1/1/49 ! interface ethernet1/1/49 description VLTi-01 no PAGE 1. machines with 192. 2 clarifies native VLAN assignment on the peer link; solutions for single-homing a Once this is done, create the VLT domain, add the backup destination, and add the interfaces participating in VLTi. For detail configuration I would suggest you to refer the Dell Networking Configuration guide for OS9 platforms. PAGE 26 The value is entered in seconds and the maximum value it can be is ‘65535’. This technical guide provides the results of spanning tree interoperability between Dell EMC Networking switches running OS10 Enterprise Edition and Cisco Nexus 5K switches. VRRP is VIP based, Peer Routing does a proxy route on behalf of the peer’s address on a given VLAN. Configuring VLT Unicast; VLT Multicast Routing. resolve the MAC address of the VLT node even when VLT node is down. This command is used to validate the VLT configuration status. Configuring OS10# show vlt 1 Domain ID : 1 Unit ID : 1 Role : primary Version : 1. VLT peer routing enables you to . Routing with VLT – A Detailed Analysis v1. One would complete the usual VLT config on both peers. If there is, the mismatch must be resolved. NOTE: when you run VRRP on VLT switches the VRRP behavior becomes an active-active state meaning that the backup-VRRP will route traffic for the VRRP-master while the VRRP-master The role of one switch in the VLT pair is primary, and its peer switch is assigned the secondary role. To confirm, check your Mac tables to ensure each VLT peer has their peers mac, and that they completely match. In the earlier release, due to the hashing algorithm in the VLT (Virtual Link Trunking) is a Dell Networking proprietary protocol. Once VLT is enabled, it dynamically changes the MTU settings for the The show vlt domain_id command validates the VLT configuration status. vlt-port-channel 3. peer-keepalive enable . VLT multicast peer routing timer; Deployment considerations; Example: Spanned L3 VLAN IIF using PIM-SM; VLT multicast routing commands. S5248F-Leaf1A# show vlt 255 Domain ID : 255 Unit When Layer 3 routing protocols are enabled on VLT peers, make sure the delay-restore timer is set to a value that allows sufficient time for all routes to establish adjacency and exchange all the L3 routes between the Each VLT peer runs its own PIM protocol independently of other VLT peers. That means Peer-Routing : Disabled Peer-Routing-Timeout timer : 0 seconds VLTi Link Status port-channel1000 : up . Notes, cautions, and warnings NOTE: A NOTE indicates important information that helps you make better use of your product. 5. 3. S5248F-Leaf1A# show vlt 255 先日の Japan VMUG UserCon で Dell-EMC の坂井さんに Session Speaker してもらったので，そのお礼もかねて，S4148T-ON の VLT を紹介しようと思います． S4148T-ON は OS10 EE だと Stack 機能をサポートしていませんが，Switch 2 台で VLT を構成して Layer2 のアグリゲーションを実装することができます． vDS についても I have setup the VLT domain and the discovery interfaces for the 100g DAC interfaces. There should be no output to this command on any switch correctly configured for VLT. VLT peer – The two switches participating in VLT are peer to each other. 0 Local System MAC address : 90:b1:1c:f4:xx:xx VLT MAC address : 00:11:22:33:44:55 IP address : fda5:74c8:xxxx:1::1 Delay-Restore timer : 1000 seconds Peer-Routing : Disabled Peer-Routing-Timeout timer : 0 seconds VLTi Link Status port-channel1000 : up VLT Peer Unit ID System The guest VLAN where these PXE requests reside have their gateway on the VLT peers as follows: VLT Peer 1. Configuring VLT Multicast; Non-VLT ARP Sync; RSTP Configuration OS10# show vlt 1 Domain ID : 1 Unit ID : 1 Role : primary Version : 1. They are running OS10 Version 10. The following example shows a mismatch of the VLT domain IDs on VLT peer switches. Australia/English Brazil/Português China Mainland/简体中文 France/Français Germany/Deutsch Italy/Italiano Proxy ARP Capability on VLT Peer Nodes; VLT Nodes as Rendezvous Points for Multicast Resiliency; Configuring VLAN-Stack over VLT; IPv6 Peer Routing in VLT Domains Overview; Configure BFD in VLT Domain. Diagnostics and Tools; Drivers and Downloads; Warranty and Contracts; Product Support; Dispatch Status; Dell Official Support Videos; Latest Solutions. Static route and routing protocols such as RIP, OSPF, ISIS, and BGP are supported. Do i need to configure anything on the cisco switch side ? So i've read a fair bit of documentation on VLT/peer routing. The VLT-related information between the nodes is exchanged through the specific reserved VLAN (VLAN 4094). He mentioned something about expired x509 cert, could you check by running #show vlt 1 vlt-port-detail to see if it sheds any light to the issue. router ospf 1 router-id 3. The following figure shows sample Layer 3 VLT topology. 1. show lldp neighbors. 1 Still are going to keep working withouth problems When setting up VLT interfaces with peer-routing and defining "channel-group on" (as opposed to active) which I assume is a static LAG, will this connection to the remote side still rely on LACP states by default (like active does)? And if not, can you use VRRP on top of a static LAG (without LACP states)? Implement dynamic LACP for VLT port-channels. 16. The steps in this article are applicable to Force 10 switches that support VLT. S4048-Leaf3#show vlt detail Hello, I have recently had an issue were I’ve cycled the Port Channels on the Dell switches , but one of them does not come up. 2 Date Version Description 10-11-2015 1. Leaf1A# show vlt 255 Domain ID : 255 Unit ID : 2 Role :2 Delay-Restore timer : 90 seconds Peer-Routing : Disabled Peer-Routing-Timeout timer : 0 seconds VLTi Link Status port-channel1000 : up VLT Peer Unit ID show vlt domain_id. What is Dell Networking VLT (Virtual Link Trunking)? In simplified words, a VLT Mismatch examples include incompatible VLT configuration settings, VLAN differences, different switch operating system versions, and STP inconsistencies. As a result, the VLT unit ID was automatically numbered as follows. interface mgmt1/1/1 no OS10# show vlt 1 Domain ID : 1 Unit ID : 1 Role : primary Version : 1. Specify a virtual MAC address that the switches will share. multicast peer-routing-timeout; show vlt inconsistency ip mcache; show vlt mismatch; IPv6 The show vlt domain_id command validates the VLT configuration status. Finally, enable VLT peer routing on each switch. 30. Customers can enable IP Anycast Gateway for up to This document provides an overview of Virtual Link Trunking (VLT) and best practices for VLT deployment within the Dell SmartFabric OS10 operating system. Peer-Routing : Disabled Peer-Routing-Timeout timer : 0 seconds Multicast peer-routing timer : 300 seconds VLT Peer Unit ID System MAC Address Status IP Address Version-----1 8c:04:ba:a7:f0:c0 up fda5:74c8:b79e:1::1 3. multicast peer-routing-timeout; show vlt inconsistency ip mcache; show vlt mismatch; IPv6 Peer routing timeout. Ensure that the same static and dynamic L3 routing exists on each peer so that L3 reach ability and routing tables are the same on both peers. Peer routing enables one VLT node to act as a proxy gateway for the other peer in a VLT domain. 3 contains full-mesh support with VLT, new method to single-home devices to one peer, and improvements on “show” reporting from the secondary peer. Proxy Gateway in VLT Domains; Configuring a Static VLT Proxy Gateway vlt domain 1 peer-link port-channel 127 back-up destination 192. The VLTi Link Status and VLT Peer Status must both be up. 2 12 2020 Rev. VLT Peer Unit ID System MAC Address Status IP Address Version-----1 cc:48:3a:fa:36:f6 up fda5:74c8:b79e:1::1 2. As both VLT n Usage Information Example (no mismatch) The * in the mismatch output indicates a local node entry. Would you recommend. The backup destination is the OOB management IP address of the VLT peer switch. 126. This forms the core switch at the centre of the network. Dell Support Resources. The Role for one switch in the VLT pair is primary, and its peer switch (not shown) is assigned the secondary role. VLT peer routing enables optimized routing where packets destined for the Layer 3 endpoint of the VLT peer are locally routed. VLT peer routing enables optimized routing where packets destined for the Layer 3 endpoint of the VLT peer are locally routed. 1 Virtual Link Trunking (VLT) VLT allows link aggregation group (LAG) terminations on two separate switches and supports a loop-free topology. 3 Repeat the steps on the VLT peer. After the server boots, it establishes the LACP port-channel, which allows the VLT port-channels to function like a regular VLT port-channel after the LACP PDUs are received. PIM-Sparse Mode Support on VLT; VLT Routing. VLT + Peer Routing VLT + Peer Routing + VRRP VLT + VRRP. S5248F-Leaf1A# show vlt 255 During implementation, suddenly we got mstp block in ports configured in vlt-peer-lag (Port-channel interfaces), we had to disable one port from each vlt port-channel interfaces to make this port working. VLT peer-routing SLAAC. I have this The backup destination is the OOB management IP address of the VLT peer switch. . We need redundancy for first Peer-Routing: within a VLT domain, each peer forwards routed traffic on behalf of the other, regardless of whether the gateway is hosted on other switch. lacp ungroup member-independent vlt! protocol spanning-tree rstp. 2 route on behalf of . vpc 20. switchport mode trunk. Multi-domain VLT; VLT Terminology; Configure Virtual Link Trunking. Configure the VLT interconnect between S5248F-Leaf 1 and S5248F-Leaf 2. Enables Layer 3 routing protocol support in VLT LAGs with scaled Layer 3 VLAN support. Syntax show vlt mac-inconsistency Parameters None Default Not configured Command Mode EXEC Usage Information Use this command to check mismatch of MAC address table entries between VLT peers. Be sure to configure the same IP anycast IPv4 or IPv6 address and the same virtual global MAC address on both VLT nodes. 1 and allowing the ToR . peer Once this is done, enter the VLT domain, add the backup destination, and add the interfaces participating in VLTi. LACP fallback in VLT allows the PXE boot server to establish a connection over a single port, download the boot image, and continue the boot process. ) You've almost definitely exceeded the number of physical ports you can have in a single port channel. eVLT in Dell SmartFabric OS10. With proxy ARP, hosts can . D. S4048-Leaf3#show vlt detail Start sending API requests with the Delete multicast-peer-routing-timeout by ID public request from OS10 on the Postman API Network. It synchronizes layer 2 and layer 3 control-plane information. The device is not aware it is connected to a VLT port Dell VLT Stacking: Aruba VSX: Supports Multi chassis Lag: : : independent control planes: : : All active-gateway configuration (L3 load balancing) (VLT Peer routing) (VSX Active forwarding) Layer 3 Packet load balancing : : : Can Participate in Spanning tree MST/RSTP: : : Gateway IP Redundancy : VRRP: (VSX Active Gateway or VRRP) OS10# show vlt 1 Domain ID : 1 Unit ID : 1 Role : primary Version : 1. 0/30 area 0 end Switch3#show vlt br VLT Domain Brief ----- Domain ID: 2 Role: Primary Role Priority: 4096 ICL Link Status: Up HeartBeat Status: Up VLT Peer Status: Up Local Unit Id: 0 Version: 6(7) Local Create the VLT domain. show vlt domain_id. Proxy Gateway in VLT Domains; Configuring a Static VLT Proxy Gateway show vlt domain_id. 2. The issue we are facing is that once we disconnect uplink to the one of switches we lose connectivity to the whole traffic which being passed via For this purpose, several configuration environments are supported in VLT, such as VRRP, IP Anycast Gateway, and eVLT. replace VRRP with routed VLT to route the traffic from Layer 2 access nodes. The VLAN configuration must be symmetrical on both peers. 0/24 area 0 network 192. 18. VLT Few things to unpack here. You can confi • You can reduce the number of VLTi port channel members based on your specific design. This document provides an overview of Virtual Link Trunking (VLT) and best The VLT peers exchange and synchronize Layer2-related tables to achieve harmonious Layer2 forwarding among the whole VLT domain, but the mechanism involved is transparent. These protocols are necessary to assist the VLT implementation in the Layer 3 environment. The First hop router redundancy protocol (FHRP) is implemented at the Layer2 & layer3 boundary. show vlt detail. I setup VLT successful as far as I see (see snippets 1 and 2). eVLT in Create the VLT domain. ESXi servers seems to OS10# show vlt 1 Domain ID : 1 Unit ID : 1 Role : primary Version : 1. Configure the primary VLT peer as the RSTP primary root device and configure the secondary VLT peer as the RSTP Hi Community,recently I received two S4128T-ON switches. vlt-peer-lag-port-channel 99 channel-member tengig 0/10] VLTi [int po-ch 1 no ip add vxlan-instance 77 channel-member tengig 0/48 channel VLT + Peer Routing VLT + Peer Routing + VRRP VLT + VRRP. A separate backup link maintains heartbeat messages across the Peer routing. 3 primary-priority 10 system-mac mac-address 00:11:22:33:44:55 unit-id 0 peer-routing. Proxy ARP Capability on VLT Peer Nodes; VLT Nodes as Rendezvous Points for Multicast Resiliency; Configuring VLAN-Stack over VLT; IPv6 Peer Routing in VLT Domains Overview; Configure BFD in VLT Domain. 120. With this type of solution, it is possible for an end host to be assigned a gateway IP address of either upstream switch in the VLT domain and traffic will be forwarded by the switch that received it, instead of being sent across the VLTi. Each VLT peer runs its To verify the PIM neighbors on the VLT VLAN and on the multicast port, use the show ip pim neighbor, show ip igmp snooping mrouter, and show running config commands. Below I show the output of the ‘show vlt brief’ command on both VLT peer switches to confirm VLT is up and running. 0. VLT multicast routing. Unsolved. Virtual Link Trunking (VLT) Overview. I spoke to one of my co-worker about it. 0 Local System MAC address : 90:b1:1c:f4:xx:xx VLT MAC address : 00:11:22:33:44:55 IP address : fda5:74c8:xxxx:1::1 Delay-Restore timer : 1000 seconds Peer-Routing : Disabled Peer-Routing-Timeout timer : 0 seconds VLTi Link Status port-channel1000 : up VLT Peer Unit ID System The VLTi Link Status and VLT Peer Status must both be up. To enable VLT unicast routing, both VLT peers must be in Layer 3 mode. Finally, enable VLT peer routing. Proxy Gateway in VLT Domains; Configuring a Static VLT Proxy Gateway If one VRRP router fails, the other router will detect its missing peer, and become the active gateway. Best practices for VLT deployment. OS10# show vlt 1 Domain ID : 1 Unit ID : 1 Role : primary Version : 1. The issue we are facing is that once we disconnect uplink to the one of switches we lose connectivity to the whole traffic which being passed via Mismatch examples include incompatible VLT configuration settings, VLAN differences, different switch operating system versions, and STP inconsistencies. the peer-routing-timeout command would cease routing on behalf of the peer after the timer's expiration. If the ICL link is down when a VLT node receives an ARP request for the IP address of the VLT peer, owing . See Scenario 1 and Scenario 2 for the topology used in the deployment example. United States/English. NOTE: when you run VRRP on VLT switches the VRRP behavior becomes an active-active state meaning that the When you enable Layer 3 routing protocols on VLT peers, make sure the delay-restore timer is set to a value that allows sufcient time for all routes to establish adjacency and Dell Networking’s Virtual Link Trunking (VLT or vLT) feature is a proprietary Layer 2 (L2) multipathing technology that delivers full bi-sectional bandwidth for today’s demanding Enable peer routing. interface Vlan 242 description ** RH-GUEST ** ip address 172. 2. Even the backup VRRP router will forward packets for hosts and end devices. 2discovery Since VRRP establishes an active/active mode in VLT, the VLT nodes route traffic from the hosts. Use the default active/active VRRP mode in VLT-VLANs. With peer routing, you need not configure VRRP for the participating VLANs. This timer does not need to be configured for standard, high-availability The value is entered in seconds and the maximum value it can be is ‘65535’. In short VRRP should be utilized over VLT-peer-routing. Peer-Routing : Disabled Peer-Routing-Timeout timer: 0 seconds Multicast peer-routing timeout: 150 seconds. S5248F-Leaf1A# show vlt 255 Domain ID : 255 Unit VLT MAC address : 00:11:22:33:44:55 IP address : fda5:74c8:b79e:1::1 Delay-Restore timer : 90 seconds Peer-Routing : Enabled Peer-Routing-Timeout timer : 0 seconds VLTi Link Status VLT Peer Unit ID System MAC Address Status IP Address Version Start sending API requests with the Delete multicast-peer-routing-timeout by ID public request from OS10 on the Postman API Network. Creating two VLT/vPC domains may cause a network loop. DorfPinguin. VLT commands. no disable. In SmartFabric mode, the VLT domain ID is 255. Note: The manual configuration of the VLT MAC address minimizes the time required to synchronize the default MAC address of the VLT domain on both peer devices when one peer switch reboots. The show vlt mismatch dhcp-relay command displays the mismatch in the global ip VLT was configured using two S4112F-ON. Each VLT peer runs its own PIM protocol independently of other VLT peers. Configuring VLT Multicast; Non-VLT ARP Sync; RSTP Configuration Each switch continues to execute its own control plane protocols (STP, unicast routing etc. Additionally we have configured BGP sessions on both switches. S4048-Leaf3#show vlt detail Hi Community,recently I received two S4128T-ON switches. To resolve this issue, ensure that a single VLT domain is used across the VLT peers. Peer-routing mismatch: No Proxy ARP Capability on VLT Peer Nodes; VLT Nodes as Rendezvous Points for Multicast Resiliency; Configuring VLAN-Stack over VLT; IPv6 Peer Routing in VLT Domains Overview; Configure BFD in VLT Domain. Optimizes routing with VLT peer routing for Layer 3 VLANs. PAGE 2. multicast peer-routing-timeout; show vlt inconsistency ip mcache; show vlt mismatch; IPv4 multicast traffic reduction. description "N4032 to S4810" spanning-tree disable. These state/control-plane information includes MAC table, ARP table For Multiple Spanning Tree Protocol (MSTP) on VLT nodes, configure both VLT peer nodes in the same MST region to avoid network loops. Peer routing VLT peer routing enables optimized routing where packets destined for the Layer 3 endpoint of the VLT peer are locally routed. Configure VLT LAG - peer 1 OS10(config)# interface port-channel 10 OS10(conf-if-po-10)# vlt-port-channel 1 Configure VLT LAG - peer 2 OS10(conf Each VLT peer runs its own PIM protocol independently of other VLT peers. As both VLT n Proxy ARP Capability on VLT Peer Nodes; VLT Nodes as Rendezvous Points for Multicast Resiliency; Configuring VLAN-Stack over VLT; IPv6 Peer Routing in VLT Domains Overview; Configure BFD in VLT Domain. 10 discovery-interface ethernet1/1/25-1/1/26 peer-routing primary-priority 8192 vlt-mac 00:11:22:33:44:55. Enter the VLT domain and add the backup destination. S4048-Leaf3#show vlt detail Hi all , am using OS version 9. To ensure the PIM protocol states or multicast routing information base (MRIB) on the VLT peers are synce OS10# show vlt 1 mismatch Peer-routing mismatch: No mismatch VLAN mismatch: No mismatch VLT VLAN mismatch: No mismatch OS10# show running-configuration vlt! vlt domain 1 discovery-interface ethernet 1/1/1 discovery-interface ethernet 1/1/2 primary-priority 4096 vlt-mac 00:11:22:33:44:55 In an environment with two S4148s with OS10 as the aggregate/core switches in single VLT domain that connects to 10 x N2000 stacks. Hi, I want to use VLT with peer-routing for our network with following configuration: on S4148FE_S1 === vlt-domain 80backup destination 10. This article describes the working functionality of VRRP and Peer-routing when implemented over VLT. Hello, I have a question regarding VLTi with peer-routing in an IPv6 environment using SLAAC. S5248F-Leaf1A# show vlt 255 Peer-Routing : Disabled Peer-Routing-Timeout timer : 0 seconds VLTi Link Status port-channel1000 : up VLT Peer Unit ID System MAC Address Status IP Address Version-----2 4c:76:25:e8: e8:40 up fda5:74c8:b79e:1::2 1. 242. 3 network 10. Remove each interface from Layer 2 mode with the no switchport command for interfaces eth 1/1/47- 1/1/48. 0 Local System MAC address : 90:b1:1c:f4:xx:xx VLT MAC address : 00:11:22:33:44:55 IP address : fda5:74c8:xxxx:1::1 Delay-Restore timer : 1000 seconds Peer-Routing : Disabled Peer-Routing-Timeout timer : 0 seconds VLTi Link Status port-channel1000 : up VLT Peer Unit ID System VLT VLAN mismatch: No mismatch Example (mismatch) OS10# show vlt 1 mismatch Peer-routing mismatch: VLT Unit ID Peer-routing -----* 1 Enabled 2 Disabled VLAN mismatch: No mismatch VLT VLAN mismatch: VLT ID : 1 VLT Unit ID Mismatch VLAN List -----* 1 1 2 2 VLT ID : 2 VLT Unit ID Mismatch VLAN List OS10# show vlt 1 Domain ID : 1 Unit ID : 1 Role : primary Version : 1. 1 should traffic get sent that way. As both VLT n Each VLT peer runs its own PIM protocol independently of other VLT peers. Anycast IP gateway routing and VRRP are mutually exclusive and cannot be configured on the same VLAN simultaneously. A quick word on the L2 vs. Dell EMC SmartFabric OS10 User Guide Release 10. It contains the exact same VLT domain on each switch. The connected LACP devices don't register that the links to the reloading VLT peer are down, and it takes about 1-2 minutes until it converges. vlt-port-channel 2! interface port-channel3. No VIP Configured. enter the VLT domain and add the backup VLT (Virtual Link Trunking) is a Dell Networking proprietary protocol. 0) release, VLT supports “peer-routing” feature. VLT Peer 2. Configuring VLT Multicast; Non-VLT ARP Sync; RSTP Configuration. 3. A Layer 2 Gateway redundancy, or First Hop Redundancy Protocol: your choices are VRRP, or Peer Routing. Preventing Forwarding Loops in a VLT Domain; Sample RSTP configuration; Configuring VLT. OS10(config)# virtual-network 10000 OS10(config-vn-10000)# vlti-vlan 100 OS10(config-vn-10000)# exit OS10(config)# virtual-network 2 DellEMC# V Po1(Tf 1/30-1/32) IPv6 Peer Routing in VLT Domains Overview VLT enables the physical links between two devices that are called VLT nodes or peers, and within a VLT doma Each VLT peer runs its own PIM protocol independently of other VLT peers. and VLT is up. 7. VLT-Peer1(conf-if-po-1)#end. 8. Assures Peer routing timeout. I would like to replace the vlt unit id, is there a way? In the user guide, we have confirmed that there is no description of the command to specify the VLT unit id or the command to operate. 254/24 tagged Port-channel 3-8,14 ip access-group Guest-Access in ip helper-address DHCP Server ip helper-address WDS/PXE Server no shutdown. Peer-routing mismatch: No During implementation, suddenly we got mstp block in ports configured in vlt-peer-lag (Port-channel interfaces), we had to disable one port from each vlt port-channel interfaces to make this port working. Configuring VLT Multicast; VLT Unicast Routing Peer-Routing : Disabled Peer-Routing-Timeout timer: 0 seconds Multicast peer-routing timeout: 150 seconds. There is a 10g uplink from each Dell switch to one single Cisco access switch with port channel enabled. Create the VLT domain. Peer routing is applicable within the VLT domain, as opposed to VLT Proxy gateway, which will be discussed later on. The VLTi Link Status and VLT Peer Status must both be up . The show lldp neighbors command provides information about OS10# show vlt 1 Domain ID : 1 Unit ID : 1 Role : primary Version : 1. 16. 0 Local System MAC address : 90:b1:1c:f4:xx:xx VLT MAC address : 00:11:22:33:44:55 IP address : fda5:74c8:xxxx:1::1 Delay-Restore timer : 1000 seconds Peer-Routing : Disabled Peer-Routing-Timeout timer : 0 seconds VLTi Link Status port-channel1000 : up VLT Peer Unit ID System OS10# show vlt 1 Domain ID : 1 Unit ID : 1 Role : primary Version : 1. Node 1. VLT operation. VLT DOMAIN mode peer-routing-timeout value value: Specify a value (i Each VLT peer runs its own PIM protocol independently of other VLT peers. The Case of Routed VLT, Peer Routing, VLT Proxy Gateway and Their Relationship to VRRP A Detailed Analysis of Layer 3 Forwarding with Dell Virtual Link Trunking Victor Lama Dell Network Solutions Enterprise Campus and Data Center Northeast Region . To ensure the PIM protocol states or multicast routing information base (MRIB) on the VLT peers are synce • You can reduce the number of VLTi port channel members based on your specific design. You don't need VRRP in that situation. Once VLT is enabled, it dynamically changes the MTU settings for the VLTi to a value of 9216. April 18th, 2020 06:00. 0 Local System MAC address : 90:b1:1c:f4:xx:xx VLT MAC address : 00:11:22:33:44:55 IP address : fda5:74c8:xxxx:1::1 Delay-Restore timer : 1000 seconds Peer-Routing : Disabled Peer-Routing-Timeout timer : 0 seconds VLTi Link Status port-channel1000 : up VLT Peer Unit ID System I have configured VLT on OS10 with following details: Peer-01 Dist-SW-01# show running-configuration vlt ! vlt-domain 16 backup destination 172. To ensure the PIM protocol states or multicast routing information base (MRIB) on the VLT peers are synce For this purpose, several configuration environments are supported in VLT, such as VRRP, IP Anycast Gateway, and eVLT. To ensure the PIM protocol states or multicast routing information base (MRIB) on the VLT peers are synce domain. 0 Local System MAC address : 90:b1:1c:f4:xx:xx VLT MAC address : 00:11:22:33:44:55 IP address : fda5:74c8:xxxx:1::1 Delay-Restore timer : 1000 seconds Peer-Routing : Disabled Peer-Routing-Timeout timer : 0 seconds VLTi Link Status port-channel1000 : up VLT Peer Unit ID System description "MLAG-to-VLT" exit. Enter the VLT domain and Once this is done, enter the VLT domain, add the backup destination, and add the interfaces participating in VLTi. The next step is to configure a VLT domain on each switch. Peer-Routing-Timeout timer: 0 seconds Multicast peer-routing timeout: 150 seconds mia-ch01-switch01#sh ver | grep Software show vlt domain_id. IP Anycast Gateway support . 6) hardware Z9100-ON with VLT peer routing . Assures high availability without taking the network offline during firmware upgrades. Finally enable VLT peer routing. This document provides an overview of Virtual Link Trunking (VLT) and best practices for VLT deployment within the Dell SmartFabric OS10 operating system. Ensure that the VLAN-to-instance mappings, region name, and revision ID are the same on both VLT peer nodes. The devices connected across this LAG should be set up in a LACP LAG. This document provides an overview of Virtual Link Trunking (VLT) and best practices for VLT Current Config: Core - two Dell S4048's running latest firmware, configured as a VLT pair. 14(2. If the peer node fails, the peer-routing-timeout command enables the availability of peer routing features. 10. Primary and Secondary VLT Peers; RSTP and VLT; VLT Bandwidth Monitoring; VLT and Stacking; VLT and IGMP Snooping; VLT IPv6; VLT Port Delayed Restoration; PIM-Sparse Mode Support on VLT; VLT Routing. forward-delay 4! vlt domain 1. 4. This article does not contain the requirements for VLT, such as running the In this article we will discuss about VLT Peer-routing and its advantages over VRRP. Share. 0/24 area 0 network 10. In this guide, While reloading one VLT peer, we get massive packet drops 50% on the LACP port channels. What is Dell Networking VLT (Virtual Link Trunking)? S4048_SWITCH1#show vlt brief VLT Domain Brief ----- Domain ID: 1 Role: Primary Role Priority: 10 ICL Link Status: Up HeartBeat Status: Up VLT Peer Status: Up Version: 6(7) Local System MAC address: e4:f0:04:58:7a:c1 Remote System MAC address: e4:f0:04:58:d5:c1 Remote system version: 6(7) Delay-Restore timer: 90 seconds Delay-Restore Abort Threshold: 60 seconds peer-routing primary-priority 65535 vlt-mac 00:00:00:00:00:02 PS: While the split/brain state was in effect after examining logs from other systems I can say that at least some trunks and at least some orphaned ports were down but also have evidence that at least some trunks were up (access switch - access switch), but surely not ALL. Routing. 0 Local System MAC address : 90:b1:1c:f4:xx:xx VLT MAC address : 00:11:22:33:44:55 IP address : fda5:74c8:xxxx:1::1 Delay-Restore timer : 1000 seconds Peer-Routing : Disabled Peer-Routing-Timeout timer : 0 seconds VLTi Link Status port-channel1000 : up VLT Peer Unit ID System In OS10 The VLT-peer-routing will answer to the VLT-peer switch as long as that VLT-peer switch was up and running. 0 Initial Release 10-12-2015 1. The steps in this article are applicable to switches running OS10 that support Virtual Link Trunking. The two switches are referred to as VLT peers and are kept synchronized via an inter-switch link (ISL) called the VLT interconnect (VLTi). To verify VLT configuration mismatch issues on peer Once this is done, create the VLT domain, add the backup destination, and add the interfaces participating in VLTi. The VLT database (VLT DB) stores the VLT control information exchanged between the VLT nodes. vpc domain 1. PAGE 97 • Verify the Topology LLDP settings. 2 (for administration purpose maybe) but if the main switch fail. S5248F-Leaf1A# show vlt 254 Domain ID : 254 Unit ID : 1 Role : primary Version : 3. (timers, port-fast where needed, etc) Peer routing in OS10 is no longer considered as an alternative to VRRP as we did not implement certain features but it is helpful to optimize the traffic flow for routed connections (each peer can forward on behalf of it's parter without utilizing the interconnect). 1732. It is working as expected. Users cannot configure the same First when I configured VLT domain in my two core switches(S4810), I need to have a route for my vlans - what shall I used intervlan routing is my preferred but when the Peer routing enabled in VLT domain, is intervlan routing is applicable or supported in peer-routing. This feature enables the VLT node to act as a proxy gateway for the other VLT peer. The local and peer status must both be up. 20. feature vpc. Provides link-level resiliency. 0 Peer Routing Dell Networking’s peer routing feature is deployed between two Layer 3 (L3) switches that are part of a single VLT domain. And why? • You can reduce the number of VLTi port channel members based on your specific design. BFD is supported over VLT only when you enable peer routing on both peers. primary-priority 8192. HostA: VLTunitID 2 HostB: VLTunitID 1. Add the interfaces participating in VLTi. ), unlike stacking. When any of the VLT port channel links connected to the ToR is down, the BFD packets reach the VLT primary or secondary using the VLTi link. vlt-mac 00:11:22:33:44:55! interface port-channel1. 0 Local System MAC address : 90:b1:1c:f4:xx:xx VLT MAC address : 00:11:22:33:44:55 IP address : fda5:74c8:xxxx:1::1 Delay-Restore timer : 1000 seconds Peer-Routing : Disabled Peer-Routing-Timeout timer : 0 seconds VLTi Link Status port-channel1000 : up VLT Peer Unit ID System 17 Virtual Link Trunking in Dell Networking 5 Peer-routing With FTOS 9. Now I want to connect the Mismatch examples include incompatible VLT configuration settings, VLAN differences, different switch operating system versions, and STP inconsistencies. In addition when I have the physical interface in no shut , all connectivity is lost. Although VRRP is traditionally an active/standby protocol, meaning only one VRRP router is forwarding at a time, when VRRP is used between VLT peers, it becomes active/active. 2 primary-priority 20 system-mac mac-address 00:11:22:33:44:55 unit-id 1 peer-routing. Note: The manual configuration of the VLT MAC address minimizes the time required to synchronize the default MAC address of the The show vlt domain_id command validates the VLT configuration status. Note: These steps should be repeated on both VLT peers. The VLTi Link Status and VLT Peer Status must both be up. This does not apply to server-side L2 VLT ports because they do not connect to any PIM routers. Virtual Link Trunking Overview Dell Virtual Link Trunking Features References eVLT in Dell SmartFabric OS10 Dell. What is the recommended configuration in this case? Peer routing timeout. VLT-Peer1(conf-if-po-1)# switchport trunk allowed vlan 101-110. 1 discovery-interface ethernet1/1/25-1/1/26 peer-routing primary-priority 2; After this the VLT status should be up which can be validated with show vlt 1 Example output Domain ID : 1 4. To ensure the PIM protocol states or multicast routing information base (MRIB) on the VLT peers are synce Configure VLT port channel - peer 1 OS10(config)# interface port-channel 20 OS10(conf-if-po-20)# vlt-port-channel 20 Configure VLT port channel - peer 2 OS10(config)# interface po IPv6 Peer Routing in VLT Domains Overview VLT enables the physical links between two devices that are called VLT nodes or peers, and within a VLT domain, to be considered as a sin i m planning to migrate to dual configuration of S4048-ON with vlt per routing and i m wondering what is the best configuration for ip helper configuration should i put the configuation tto two Configure VLT port channel - peer 1 OS10(config)# interface port-channel 20 OS10(conf-if-po-20)# vlt-port-channel 20 Configure VLT port channel - peer 2 OS10(config)# interface po Configure a VLTi VLAN for the virtual network. MAC, ARP, IPv6 neighbors learned over VLANs on VLT peer nodes synchronize using the VLTi. ? Configures the peer link port-channel ID for the VLT domain (1 to 4096) dellos9: discovery_intf: string: Configures the discovery interface for the VLT domain (range of interfaces) dellos10: discovery_intf_state: string: absent,present: Deletes the discovery interfaces for the VLT domain if set to absent: dellos10: peer_routing: boolean Hi, I'll try to help out, I'm not that good in networking. Multicast routing table synchronization; IGMP message synchronization; Egress mask; Spanned VLAN; VLT multicast peer routing timer; Deployment considerations; Example: Spanned L3 VLAN IIF using PIM-SM; VLT multicast routing commands. VLT, is limited to 2 peers. com Contact Us. When deploying VLT, consider the following best practices: Both VLT peers require the same SmartFabric OS10 version within the production This article explains how to set up Virtual Link Trunking (VLT) on Dell Networking OS9 switches. View More. interface port-channel 20. Configure symmetrical configurations on VLT port-channels peer-routing ! Example VLT Port Channel Peer Lag (to N series, connected on both switches) interface Port-channel 3 description BLAH no ip address portmode hybrid switchport sflow enable vlt-peer-lag port-channel 3 no shutdown ! VLANS configured like this (with a different IP on each switch): interface Vlan 1022 VLT peer-routing SLAAC; Start a Conversation. 32768 VLT MAC address : aa:bb:cc:11:11:11 IP address : fda5:74c8:b79e:1::2 Delay-Restore timer : 90 seconds Peer-Routing : Disabled Peer-Routing-Timeout timer : 0 seconds VLTi Link Status port-channel1000 : up VLT Peer Unit ID Peer routing timeout. VLT interconnect (VLTi) – VLTi synchronizes state information between VLT peers. VLT DOMAIN mode peer-routing 3 Configure the peer-routing timeout. both switch's dynamic routing enabled. Note: For more VLT-Peer1(conf-if-po-1)# switchport mode trunk. 0 Local System MAC address : 90:b1:1c:f4:xx:xx VLT MAC address : 00:11:22:33:44:55 IP address : fda5:74c8:xxxx:1::1 Delay-Restore timer : 1000 seconds Peer-Routing : Disabled Peer-Routing-Timeout timer : 0 seconds VLTi Link Status port-channel1000 : up VLT Peer Unit ID System Peer Routing, simply put, allows a switch in a VLT domain to forward traffic on behalf of it’s peer switch. Enable peer routing. Proxy Gateway in VLT Domains; Configuring a Static VLT Proxy Gateway OS10# show vlt 1 Domain ID : 1 Unit ID : 1 Role : primary Version : 1. This command is used to verify VLT peers are communicating on the backup link over the OOB Peer-Routing-Timeout timer: 0 seconds Multicast peer-routing timeout: 150 seconds. Proxy Gateway in VLT Domains; Configuring a Static VLT Proxy Gateway vlt domain domain-id 2 Enable peer-routing. 0 Local System MAC address : 90:b1:1c:f4:xx:xx VLT MAC address : 00:11:22:33:44:55 IP address : fda5:74c8:xxxx:1::1 Delay-Restore timer : 1000 seconds Peer-Routing : Disabled Peer-Routing-Timeout timer : 0 seconds VLTi Link Status port-channel1000 : up VLT Peer Unit ID System For this purpose, several configuration environments are supported in VLT, such as VRRP, IP Anycast Gateway, and eVLT. 1. Peer routing is unique in that both switches participating in the VLT domain will accept packets destined for the IP assigned to either switch on a VLAN interface. S5232-Leaf1A# show vlt 1 Domain ID : 1 Unit ID :2 Delay-Restore timer : 90 seconds Peer-Routing : Enabled Peer-Routing-Timeout timer : 0 seconds VLTi Link Status port-channel1000 : up VLT Peer Unit ID vlt-domain 1 backup destination 192. Configure the interfaces used as the VLTi with the discovery-interface command. The local database (Local DB) stores the MAC and ARP This document provides an overview of Virtual Link Trunking (VLT) and best practices for VLT deployment within the Dell SmartFabric OS10 operating system. 0 Local System MAC address : 90:b1:1c:f4:xx:xx VLT MAC address : 00:11:22:33:44:55 IP address : fda5:74c8:xxxx:1::1 Delay-Restore timer : 1000 seconds Peer-Routing : Disabled Peer-Routing-Timeout timer : 0 seconds VLTi Link Status port-channel1000 : up VLT Peer Unit ID System Enhanced VLT; Configure Virtual Link Trunking. As I am not that familiar with DNOS, how can it be that the S4048 don't shut down interfaces at once while reloading? As a workaround, VLT LAGs on the network side (above leaf) are not supported. 2(0. IGMP snooping; Unknown multicast flood control. max-age 6. When the timer expires, the VLT peer is checked to see if it is available; if the VLT peer is not available, peer-routing is disabled on that peer. Make sure that Peer-Routing is set to Enabled. VLT was configured using two S4112F-ON. Use RSTP and tune it. Virtual Link Trunking Overview Dell Virtual Link Trunking Features References VLT unicast routing VLT unicast routing requires that both VLT peers be in Layer 3 mode. Run the show vlt domain_id command to validate the VLT configuration status. And why? Cancel Post. S4048-Leaf1# show vlt 127 mismatch. Enhances optimized forwarding with Virtual Router Redundancy Protocol (VRRP). Peer routing timeout. To disable this behavior, run the following command on the VLAN interface of both peers: Force10(conf-if-po-20)# vlt-peer-lag port-channel 20: Assign the port channel as a VLT port channel: Force10(conf-if-po-20)#end: Exit configuration mode: Force10# write: Save configuration . 168. IP Anycast Gateway support. Both VLT peers should be configured with the same local VTEP IP address. This way, an active/active mode can be supported in Layer 3 as well. To ensure the PIM protocol states or multicast routing information base (MRIB) on the VLT peers are synce Configure VLT port channel - peer 1 OS10(config)# interface port-channel 20 OS10(conf-if-po-20)# vlt-port-channel 20 Configure VLT port channel - peer 2 OS10(config)# interface po • You can reduce the number of VLTi port channel members based on your specific design. Note: For more information on VLT, see the Dell EMC SmartFabric OS10 User Guide Release 10. FORCE10. Moreover, that VLT domain will be acting as the network's L3/L2 boundary. XPS Desktops. L3 functionality with VTEPs. 0 Local System MAC address : 90:b1:1c:f4:xx:xx VLT MAC address : 00:11:22:33:44:55 IP address : fda5:74c8:xxxx:1::1 Delay-Restore timer : 1000 seconds Peer-Routing : Disabled Peer-Routing-Timeout timer : 0 seconds VLTi Link Status port-channel1000 : up VLT Peer Unit ID System Configure the VLT interconnect between S5248F-Leaf 1 and S5248F-Leaf 2. VLT-Peer1(config)# spanning-tree mode mst VLT-Peer1(config)# spanning-tree mst configuration VLT-Peer1(conf-mst)# instance The VLT nodes and top-of-rack (ToR) use the VLT port channel links to carry the BFD packets. L2. Now I want to connect the PAGE 1. Important Points to Remember; Configuration Notes; RSTP and VLT; VLT Bandwidth Monitoring; VLT and IGMP Snooping; VLT Port Delayed Restoration; PIM-Sparse Mode Support on VLT; VLT Multicast. Other than that, there will be the usual VXLAn config [vxlan-instance Or, with VLT, since you have peer routing enabled you should be fine pointing your next hop to . 0 Local System MAC address : 90:b1:1c:f4:xx:xx VLT MAC address : 00:11:22:33:44:55 IP address : fda5:74c8:xxxx:1::1 Delay-Restore timer : 1000 seconds Peer-Routing : Disabled Peer-Routing-Timeout timer : 0 seconds VLTi Link Status port-channel1000 : up VLT Peer Unit ID System NOTE: If VRRP is configured in a VLT environment both switches act as active forwarders by default. peer-routing primary-priority 1; Configure VLT on second switch using interfaces 25 and 26 using: vlt-domain 1 backup destination 1. vlt domain 1 peer-link port-channel 127 back-up destination 192. 1 Peer-Routing-Timeout timer: 0 seconds Multicast peer-routing timeout: 150 seconds. jmhym jjhv jrik ytbgw mni iupb iiwfyxf cdqovd xgm aizh