Hi Naveen,
Could you try a shut/no shut on the vlan segment between the VRs?
Sometimes unreliable communication between the switches can cause the hellos to
not be seen at other end..
Interface counters on the interface in question should help
Thanks!
--
Regards,
Balaji.
From: <vpp-dev@lists.fd.io> on behalf of "Naveen Joy via lists.fd.io"
<najoy=cisco....@lists.fd.io>
Reply-To: "Naveen Joy (najoy)" <na...@cisco.com>
Date: Thursday, August 13, 2020 at 3:34 PM
To: "mgsm...@netgate.com" <mgsm...@netgate.com>
Cc: "vpp-dev@lists.fd.io" <vpp-dev@lists.fd.io>
Subject: [vpp-dev] VRRP issue
Hi Matthew/All,
I am facing an issue with VRRP in VPP and would appreciate your help.
(Attached - architecture diagram)
1. I have 2 nodes with VPP & in each node, VRRP is configured to back up a
router BVI interface in a bridge domain.
2. The VRRP VRs are speaking VRRP (multicast) over an uplink VLAN interface
connected to an external switch.
3. The active router has a VR priority of 110 and is set to preempt.
The backup router has a VR priority of 100 and is not in preempt.
1. The issue is that VRRP in the backup router is unstable and keeps
transitioning between the master and backup states every second.
However, the VRRP in the master node is stable.
I am running the latest VPP release installed from master this week.
vpp# show version verbose
Version: v20.09-rc0~283-g40c07ce7a~b1542
Compiled by: root
Compile host: 1f7cd9b19229
Compile date: 2020-08-11T20:40:47
Compile location: /w/workspace/vpp-merge-master-ubuntu1804
Compiler: Clang/LLVM 9.0.0 (tags/RELEASE_900/final)
Current PID: 5504
On the backup node –
Aug 13 12:59:48 ml-ucs-03 vnet[4023]: vrrp_vr_transition_addrs:238: Deleting VR
addresses on sw_if_index 11
Aug 13 12:59:48 ml-ucs-03 vnet[4023]: vrrp_vr_transition_vmac:123: Deleting
virtual MAC address 00:00:5e:00:01:0a on hardware interface 10
Aug 13 12:59:50 ml-ucs-03 vnet[4023]: vrrp_vr_transition:283: VR [0]
sw_if_index 11 VR ID 10 IPv4 transitioning to Master
Aug 13 12:59:50 ml-ucs-03 vnet[4023]: vrrp_vr_transition_addrs:238: Adding VR
addresses on sw_if_index 11
Aug 13 12:59:50 ml-ucs-03 vnet[4023]: vrrp_vr_transition_vmac:123: Adding
virtual MAC address 00:00:5e:00:01:0a on hardware interface 10
Aug 13 12:59:50 ml-ucs-03 vnet[4023]: vrrp_input_process:223: Received
advertisement for master VR [0] sw_if_index 11 VR ID 10 IPv4
Aug 13 12:59:50 ml-ucs-03 vnet[4023]: vrrp_vr_transition:283: VR [0]
sw_if_index 11 VR ID 10 IPv4 transitioning to Backup
Aug 13 12:59:50 ml-ucs-03 vnet[4023]: vrrp_vr_transition_addrs:238: Deleting VR
addresses on sw_if_index 11
Aug 13 12:59:50 ml-ucs-03 vnet[4023]: vrrp_vr_transition_vmac:123: Deleting
virtual MAC address 00:00:5e:00:01:0a on hardware interface 10
Aug 13 12:59:51 ml-ucs-03 vnet[4023]: vrrp_vr_transition:283: VR [0]
sw_if_index 11 VR ID 10 IPv4 transitioning to Master
Aug 13 12:59:51 ml-ucs-03 vnet[4023]: vrrp_vr_transition_addrs:238: Adding VR
addresses on sw_if_index 11
Aug 13 12:59:51 ml-ucs-03 vnet[4023]: vrrp_vr_transition_vmac:123: Adding
virtual MAC address 00:00:5e:00:01:0a on hardware interface 10
Aug 13 12:59:51 ml-ucs-03 vnet[4023]: vrrp_input_process:223: Received
advertisement for master VR [0] sw_if_index 11 VR ID 10 IPv4
Aug 13 12:59:51 ml-ucs-03 vnet[4023]: vrrp_vr_transition:283: VR [0]
sw_if_index 11 VR ID 10 IPv4 transitioning to Backup
Aug 13 12:59:51 ml-ucs-03 vnet[4023]: vrrp_vr_transition_addrs:238: Deleting VR
addresses on sw_if_index 11
Aug 13 12:59:51 ml-ucs-03 vnet[4023]: vrrp_vr_transition_vmac:123: Deleting
virtual MAC address 00:00:5e:00:01:0a on hardware interface 10
Aug 13 12:59:52 ml-ucs-03 vnet[4023]: vrrp_vr_transition:283: VR [0]
sw_if_index 11 VR ID 10 IPv4 transitioning to Master
Aug 13 12:59:52 ml-ucs-03 vnet[4023]: vrrp_vr_transition_addrs:238: Adding VR
addresses on sw_if_index 11
Aug 13 12:59:52 ml-ucs-03 vnet[4023]: vrrp_vr_transition_vmac:123: Adding
virtual MAC address 00:00:5e:00:01:0a on hardware interface 10
Aug 13 12:59:52 ml-ucs-03 vnet[4023]: vrrp_input_process:223: Received
advertisement for master VR [0] sw_if_index 11 VR ID 10 IPv4
Aug 13 12:59:52 ml-ucs-03 vnet[4023]: vrrp_vr_transition:283: VR [0]
sw_if_index 11 VR ID 10 IPv4 transitioning to Backup
Aug 13 12:59:52 ml-ucs-03 vnet[4023]: vrrp_vr_transition_addrs:238: Deleting VR
addresses on sw_if_index 11
Aug 13 12:59:52 ml-ucs-03 vnet[4023]: vrrp_vr_transition_vmac:123: Deleting
virtual MAC address 00:00:5e:00:01:0a on hardware interface 10
vpp# show vrrp vr
[0] sw_if_index 11 VR ID 10 IPv4
state Backup flags: preempt no accept yes unicast no
priority: configured 100 adjusted 100
timers: adv interval 30 master adv 30 skew 18 master down 108
virtual MAC 00:00:5e:00:01:0a
addresses 10.4.4.5
peer addresses
tracked interfaces
vpp# show vrrp vr
[0] sw_if_index 11 VR ID 10 IPv4
state Master flags: preempt no accept yes unicast no
priority: configured 100 adjusted 100
timers: adv interval 30 master adv 30 skew 18 master down 108
virtual MAC 00:00:5e:00:01:0a
addresses 10.4.4.5
peer addresses
tracked interfaces
On the Master node ..
vpp# show vrrp vr
[0] sw_if_index 14 VR ID 10 IPv4
state Master flags: preempt yes accept yes unicast no
priority: configured 110 adjusted 110
timers: adv interval 30 master adv 30 skew 17 master down 107
virtual MAC 00:00:5e:00:01:0a
addresses 10.4.4.5
peer addresses
tracked interfaces
Aug 13 13:29:44 ml-ucs-01 vnet[5504]: vrrp_input_process:223: Received
advertisement for master VR [0] sw_if_index 14 VR ID 10 IPv4
Aug 13 13:29:45 ml-ucs-01 vnet[5504]: vrrp_input_process:223: Received
advertisement for master VR [0] sw_if_index 14 VR ID 10 IPv4
Aug 13 13:29:46 ml-ucs-01 vnet[5504]: vrrp_input_process:223: Received
advertisement for master VR [0] sw_if_index 14 VR ID 10 IPv4
Aug 13 13:29:47 ml-ucs-01 vnet[5504]: vrrp_input_process:223: Received
advertisement for master VR [0] sw_if_index 14 VR ID 10 IPv4
Aug 13 13:29:49 ml-ucs-01 vnet[5504]: vrrp_input_process:223: Received
advertisement for master VR [0] sw_if_index 14 VR ID 10 IPv4
Aug 13 13:29:50 ml-ucs-01 vnet[5504]: vrrp_input_process:223: Received
advertisement for master VR [0] sw_if_index 14 VR ID 10 IPv4
Aug 13 13:29:51 ml-ucs-01 vnet[5504]: vrrp_input_process:223: Received
advertisement for master VR [0] sw_if_index 14 VR ID 10 IPv4
Aug 13 13:29:52 ml-ucs-01 vnet[5504]: vrrp_input_process:223: Received
advertisement for master VR [0] sw_if_index 14 VR ID 10 IPv4
VPP config:
unix {
nodaemon
log /tmp/vpp.log
full-coredump
cli-listen /run/vpp/cli.sock
gid vpp
}
api-trace {
on
}
api-segment {
uid najoy
}
Thanks,
Naveen
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