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AR VRRP routing failover failed

Latest reply: Dec 20, 2018 03:24:20 2573 11 10 0 0

【Problem Description】

Have Two router (AR2220) and we have configured VRRP but in both the routers but every time both the router becomes master-master instead of master-standby.  

And the failover is also an issue…  


【Problem Analysis】

The 0/0/1 and 4/0/3 interfaces are provided by the carrier. The 0/0/2 is the LAN.
0/0/1 is the active node. The link is disconnected, and then the 4/0/3 message is sent.

In this case, the route configuration should be correct.

1


【Root Cause】  

This is due to different negotiation modes on the switch side and AR side, so it cannot ping 10.1.1.3 even if not failover the test.


【Solution Description】

After we adjust the negotiation mode on both sides then solve this issue,

interface G4/0/3

negotiation auto

 This is what I want to talk about/share with you today, thank you!

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yjhd
Created Nov 6, 2018 07:37:13

different negotiation mode on switch side and AR side
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Torrent
Created Nov 6, 2018 07:39:21

this is due to different negotiation mode on switch side and AR side, so it cannot ping 10.1.1.3 even if not failover test.

if different negotiation, what will cause? interface not up?
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Torrent
Created Nov 6, 2018 07:51:19

The reflect change-path-attribute command enables an route-reflector (RR) to modify the route attributes of BGP routes using the export policy.

The undo reflect change-path-attribute command disables an RR from modifying the route attributes of BGP routes using the export policy.

By default, an RR is disabled from modifying route attributes of BGP routes using the export policy.


thanks for sharing us such a good example, learned!AR VRRP routing failover failed-2795875-1
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GongXiaochuan
Created Nov 6, 2018 07:58:46

On a multicast or broadcast LAN such as an Ethernet network, a logical VRRP gateway ensures reliability for key links. VRRP is highly reliable and prevents service interruption if a physical VRRP-enabled gateway fails. VRRP configuration is simple and takes effect without modification in configurations such as routing protocols
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limgsc
Created Nov 6, 2018 09:44:12

your document is work for me , i get the point , fix my issue by your doc thanks you very much ,
also hope you public more doc that levle like this .
would you please also mention where from the technical detail , i can found it from orignial part .
from orignial part i can found more correct parameter , this is more important .
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Skay
Created Nov 6, 2018 09:53:27

In load balancing mode, multiple VRRP groups transmit service traffic simultaneously. The implementation and packet negotiation in load balancing mode are similar to those in active/standby mode. Each VRRP group has one master and multiple backups. In load balancing mode, multiple VRRP groups need to be set up and use different masters. A VRRP device can join multiple VRRP groups and has different priorities in different VRRP groups.
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lizhi94
Created Nov 13, 2018 09:48:43

AR VRRP routing failover failed is a common problem with the post i have got the right way to handle it at next time meet it
and due to different negotiation mode on switch side and AR side, so it cannot ping 10.1.1.3 even if not failover test.
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Finn92
Created Nov 15, 2018 04:05:08

different negotiation mode on switch side and AR side , then what's the phenomenon , why you can find it ?just comparing configuration ?
come on , amigo , please give us more helpful information .
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littlestone
Created Nov 27, 2018 06:23:22

Virtual Routing Redundancy Protocol (VRRP) is a routing protocol proposed by IETF to solve the single point failure of configuring static gateway in LAN. In 1998, formal RFC 2338 protocol standard was introduced. VRRP is widely used in edge networks. Its design goal is to support the failure of IP data traffic transfer under specific circumstances without causing confusion, to allow the host to use a single router, and to maintain the connectivity between routers in time when the first hop router fails.
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