[c-nsp] Nexus 2k - host ports

[Damien Luke]

Hi Simon,

We ran in to the same issue for the same reason.  In the end we moved the cheaper switches on to the 5/7ks that we use for aggregation - burns more expensive ports but it was something that we needed to have done sooner than waiting for Cisco to modify this behaviour.

Regards,

Damien

-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Thomason, Simon
Sent: Friday, 24 June 2011 3:30 PM
To: cisco-nsp
Subject: [c-nsp] Nexus 2k - host ports

Hey All,

Just doing a little research at the moment for some design work and I found out that you can not plug a switch into a nexus2k as all ports are host ports.

I am certain a least a few people on here have had a look into this and was just wondering if there is some kind of work around?

I have also been trying to find out if on the road map for the nexus platform there is something in the works to support this at a later date.

Reason for plugging a switch into the Nexus2k's would be to allow the ilo ports which only operate at 100M to be plugged into a cheaper switch rather than burning up a 10/100/1000 extender per rack with a 10gig extender.

---reference---
Host interfaces are for host or server connectivity only; host interfaces cannot connect to another network. These interfaces are always enabled as edge ports; as they come up, these ports immediately transition to the forwarding state. Host interfaces are always enabled with BPDU Guard. If a BPDU is received, the port is immediately placed in an error-disabled state which keeps the link down.

http://www.cisco.com/en/US/docs/switches/datacenter/nexus2000/sw/configuration/guide/rel_4_0_1a/FEX-features.html

Host interfaces are for host or server connectivity only; host interfaces cannot connect to another network. These interfaces are always enabled as edge ports; as they come up, these ports immediately transition to the forwarding state. Host interfaces are always enabled with BPDU Guard. If a BPDU is received, the port is immediately placed in an error-disabled state which keeps the link down.
---reference---

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