02-29-2008 08:51 AM - last edited on 03-25-2019 03:59 PM by ciscomoderator
I hv integrated two NIC through Virtual broadcam adapter(software) to two different cisco 6509 ports. Both cisco is interconnected and STP has been enable and working fine.
Server NIC MAC 1 - a.a.a.a
Server NIC MAC 2 - b.b.b.b
Virtual IP for broadcom - 10.10.10.10
Vlan : 60
Cisco 6509 -1 port : 7/2 ( nic a.a.a.a)
Cisco 6509 - 2 port : 7/4 ( nic b.b.b.b)
Issue I am facing is when I am viewing the CAM table enteries below is the result
Cisco 6509 - 1 Cam table
Mac a.a.a.a - port 7/2
Mac b.b.b.b - Port 1/1 (interconnected
port between
6509 switches )
Cisco 6509 - 2 Cam table
Mac a.a.a.a - port 1/1 (interconnected
port between
6509 switches)
Mac b.b.b.b - Port 7/4
But suprisingly seeing the ARP table I see two different MAC on the network for same IP
i.e
Cisco 6509-1 - 10.10.10.10 - a.a.a.a vlan60
Cisco 6509-2 - 10.10.10.10 - b.b.b.b vlan 60
This seems to be created some problem in the same vlan60.
How to resolve such issue with virtual server loadbalancing ?
03-01-2008 10:57 PM
Those Broadcoms (or any other standard server nics for that matter i believe) will not load balance across seperate switches. The teaming software is designed for either redundancy (if a switch goes down it will default to the other) or mainly for double the speed - and you have to plug them into the same switch and enable etherchannel. Right now you are seeing what the switches should be expecting from the server software.
03-03-2008 05:20 AM
Thanks Robert,
curious on that ,
How I can configure the perferct method to configure server load balancing with teaming NIC on the system side and also Network load balancing on the Network side.
so i don't only hv the SLB but also NLB with high high redundancy.
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