Howdy,
I am going through the preliminary design and rough
configuration migrating from legacy 6500's to our new Nexus 7000 core and am
trying to alleviate existing design flaws through the infrastructure. I did
not build the original network, I have only been maintaining it for a short
period of time. Currently my L3 core has a large number of vlan interfaces.
There is no properly configured FHRP, just an equal split of defined gateways
(vlan 1 through 2000 vlan interfaces live on 6500-01 and 2001 through 4000 live
on 6500-02) and a failure of an HSRP deployment. I have it narrowed down to 2
deployment options and I am hoping some of my educated peers might have some
suggestions. I also have some questions as it has been a while since I did
this...
I am weighing options between HSRP and GLBP knowing that GLBP is Cisco only.
This environment will be Cisco only for the foreseeable future (always if I
have my say). The entire network infrastructure (meaning anything speaking a
routing protocol or passing traffic) will be Cisco.
The devices holding L3 routing will be Nexus 7004 with redundant Sup2's and M2
10GBE line cards and running NX-OS 6.2 (2a). My Cisco team stated that either
were accepted solutions, but he did not favor one way or the other as he did
not have reviews on GLBP deployments. I am looking for someone who has
deployed GLBP on 6.x and impressions on it. Any issues or know bugs that have
been hit related to GLBP?
One of our big initiatives for next year is redundancy and seamless failover.
With this in mind, we are in the process of implementing N+N redundancy
splitting our datacenter North/South with a distributed edge load balancing
implementation. We are trying to decrease the traffic flow across north and
south sides of that datacenter so I am favoring GLBP in my mind with some of
the traffic distribution options.
With that in mind, would you as peers favor GLBP or HSRP? I am looking at host
dependent load balancing specifically to allow better traffic distribution
cross sides of the datacenter, with times configured for 1 second hello and 4
second hold timers.
Thanks!
Blake
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