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BladeSystem - General
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VC Trunking to external LAN (Cisco)

 
H S Z
Regular Advisor

VC Trunking to external LAN (Cisco)

Hey,
I have a c7000 enclosure full of BL460c servers.
As interconnect switches, i have 2 VC-Enet with 8 uplink ports (1GB), and 2 VC-FC with 4 uplink ports (4GB).
For the LAN, I want to create 2 Vnet. each to bind all 8 ports of a VC-Enet to have a pipe of 8GB that all blade servers will talk communicate through to the external network.

the external network is a CISCO 3560 series catalyst switch.

Please advice what configuration is to be done from my Virtual Connect Manager as well as inside the cisco switch.

Thanks
5 REPLIES

Re: VC Trunking to external LAN (Cisco)

That's a complex configuration, there could be problem in spanning tree calculation, because if something fails in the port aggregation algorithm, you will create 7^7 loops: a bit too much!
The spanning tree algorithm could take days to resolve loops and you network in the mean time will be down.

Another thing to consider is that cisco spanning tree protocol and trunking protocols are "non standard", VC support pure LACP that is different from cisco Etherchannel trunking mode.

I'll proceed with little steps, maybe starting with 2+2 trunks.

H S Z
Regular Advisor

Re: VC Trunking to external LAN (Cisco)

hello Andrea,
thanks for the clarrification.
please give me ur best recommended configuration and how guide on how to achieve that.
thanks
Igor Karasik
Honored Contributor

Re: VC Trunking to external LAN (Cisco)

HSZ,
I did similar configuration - 8 Gb trunk from VC to Nortel switches.
See this great document:
"HP Virtual Connect for the Cisco Network
Administrator"
http://h20000.www2.hp.com/bc/docs/support/SupportManual/c01386629/c01386629.pdf
H S Z
Regular Advisor

Re: VC Trunking to external LAN (Cisco)

Great news Igor,
I have the same document as well. which sample configuration do you think meets what I want to achieve ?
Did you create shared uplink sets? what was ur configuration on the VC like?
thanks for your prompt response
Igor Karasik
Honored Contributor

Re: VC Trunking to external LAN (Cisco)

>>Did you create shared uplink sets? what was ur configuration on the VC like?

No, I didn't create shared uplink sets.
I just create VC network, add all 8 ports to this network and defined LACP on Nortel side.
And assign server profiles to this network.