Dear mates,
I’m in charge of replacing a cluster of 12600 configured in VRRP and running R80.20 to a new cluster of 6600 running R81.10. From experience of hardware replacement, and after reading some posts here, I think of doing the following:
- Install the new gateways using the clish configuration of the old ones by keeping the same IP address configurations, proxy arp / mcvr configs, static routes etc, fwkern.conf file etc...
- Power off the 12600 standby member and connect to R81.10 new standby member
- On the 6600, from the CMA, redo SIC, change cluster version and hardware model, fix topology as some interfaces name changed and install the policy in the gateway
- Power off the 12600 primary unit to force traffic on the new 6600
- Repeat the operation with the second R81.10 member etc…
Usually I don’t really think of ARP issue because of the VMAC feature of ClusterXL but being new to VRRP, I’m having seconds thoughts.
On the router side, on the PortChannel of the 12600 I see the following mac addresses :
- Mac addresses declared on the MCVR configuration: to the best of my knowledge, those shouldn’t be impacted by the replacement as I’ll configure them on the new devices
- Physical mac address associated to the bonding interfaces (50+ Vlans): this mac address will change and therefore require a G-ARP to update the mac address table of the router ? Easiest way would be to clear the arp cache on the Port-channel to force the update
Am I wrong on the analysis ? Is there some things I should verify before/after the switch of the cluster ?
Any tips will be appreciated.
Thanks.