Prevent vlan 1 on an uplink in UCS

[tpahuja]

Folks,

          I have 2 disjoing domains and I am using the new feature in UCS 2.1 to allow only certain vlans over a port channel. But, What I am noticing is that there is no way to prevent vlan 1 to flow on that port channel on the UCS side even though i do not see it in the vlan manager.

Any thoughts would be highly appreciated.

[Robert Burns · Accepted solution]

VLAN 1 will always be allowed on your uplinks regardless of disjoint L2 configuration.  This is one of the limiations of the system.   This is called out in the config guide:

http://www.cisco.com/en/US/docs/unified_computing/ucs/sw/cli/config/guide/2.0/b_UCSM_CLI_Configuration_Guide_2_0_chapter_010100.html#concept_4E7BF4F5FA754183B5FE3298755800A1

Regards,

Robert