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Cisco Bug: CSCun00982 - EMC-ENTRANCE:Eth ports suspended due to Resource unavailable on MDS9710

Last Modified

Feb 13, 2014

Products (1)

  • Cisco Nexus 7000 Series Switches

Known Affected Releases

6.2(6.27)S0

Description (partial)

Symptom:
<REPLACE THIS STRING with symptoms of the bug>
Port bring up can fail with syslog  "IFTMC resource allocation failure"

Conditions:
Ports are configured in trunk mode

interface Ethernet1/5
  switchport mode trunk
  no shutdown
 
interface Ethernet1/6
  switchport mode trunk
  no shutdown
 
interface Ethernet1/7
  switchport mode trunk
  no shutdown
If the Vlans are created in the range 1-4K, all the VLANs are allowed.
This will result in failure because of HW resource unavailablity.

8K is the max size of HW.  It is shared across 4 ports.

Workaround(s):
Configure allowed VLANs in each port
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  • Status
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