Ethernet Fabric (VDX, CNA)

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New Contributor
Posts: 2
Registered: ‎03-20-2015
Accepted Solution

Odd VRRP issue on VDX6740

Hi All,

 

I'm having a weird issue with a VRRP config on two VDX towards Cisco HSRP.

 

everything seems to work fine for few hours. until suddenly the HSRP Virtual-IP is not reachable.

even taking down one of the VDX's returns the same condition.

if I delete the "external" VRRP configuration and assign the VRRP VIP to a physical interface, all comes back to normal.

 

following the configurations. the VRID in question is VRID2

 

Switch 53 - VRID2

interface TenGigabitEthernet 53/0/44
mtu 9100
fabric isl enable
fabric trunk enable
qos flowcontrol tx on rx on
ip proxy-arp
ip address 145.219.138.230/28
no shutdown
vrrp-group 2
virtual-ip 145.219.138.228
enable
preempt-mode
priority 110
description external VRID

 

Switch 53 - VRID1

  interface Ve 200
ip proxy-arp
ip address 145.219.138.130/26
no shutdown
vrrp-group 1
virtual-ip 145.219.138.129
track tengigabitethernet 53/0/44 priority 90
enable
preempt-mode
priority 110
description Internal VRID

 

Switch 54 - VRID2

interface TenGigabitEthernet 54/0/44
mtu 9100
fabric isl enable
fabric trunk enable
qos flowcontrol tx on rx on
ip proxy-arp
ip address 145.219.138.229/28
no shutdown
vrrp-group 2
virtual-ip 145.219.138.228
enable
preempt-mode
description external VRID

 

Switch 54 - VRID1

interface Ve 200
ip proxy-arp
ip address 145.219.138.131/26
no shutdown
vrrp-group 1
virtual-ip 145.219.138.129
track tengigabitethernet 54/0/44 priority 90
enable
preempt-mode
description Internal VRID

 

Changing the MTU has no results.

Ideas are very welcome.

 

Regards,

William

Brocadian
Posts: 5
Registered: ‎01-15-2015

Re: Odd VRRP issue on VDX6740

Hi 

 

Have you tried using "standby-bia" command under HSRP 

 

http://www.cisco.com/c/en/us/td/docs/ios/12_2/ipaddr/command/reference/fipras_r/1rfip2.html#wp1021441

 

Regards, 

HK

Contributor
Posts: 47
Registered: ‎08-03-2015

Re: Odd VRRP issue on VDX6740

Please refer the below configuration.

It is working here.

 

rbridge-id 1
 interface Ve 2
  ip ospf area 0
  ip ospf passive
  ip proxy-arp
  ip address 10.105.1.6/28
  no shutdown
  vrrp-extended-group 2
   virtual-ip 10.105.1.4
   enable
   preempt-mode
   priority 200
   advertise-backup
   short-path-forwarding
  !
 !
!

rbridge-id 2
 interface Ve 2
  ip ospf area 0
  ip ospf passive
  ip proxy-arp
  ip address 10.105.1.5/28
  no shutdown
  vrrp-extended-group 2
   virtual-ip 10.105.1.4
   enable
   preempt-mode
   advertise-backup
   short-path-forwarding
  !
 !

______________________
Umair Khan Patel
https://in.linkedin.com/in/patelumairkhan
New Contributor
Posts: 2
Registered: ‎03-20-2015

Re: Odd VRRP issue on VDX6740

Hi all,

 

please be aware that this issue has been solved.

the problem was caused by a bug in releases previous to 4.1.3b.

 

if you encounter this bug, please upgrade.

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