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Sup 2T with TCAM issue

Hi All

We are facing a issue regarding with TCAM on ACL entries for one of the vlan.

- VLAN ACL applied on 1 ,2 , 3 Vlans ,only users on 3rd Vlan are facing packet drop/slowness , after remove the ACL it’s working fine without packet drop.

- Same ACL used in Sup720 (sometimes before upgrade to Sup2T VSS)   - ACL entry ( nearly 500 line item)

- TCAM B only used(90 %), why TCAB A block not used(10 %)

- If hardware limitation for Sup2T ,than why it’s working in 1st & 2nd VLAN

- Most of TCAM command not support in Sup2T ( Currently Running Image version # s2t54-advipservicesk9-mz.SPA.150-1.SY1.bin )

TCAM Output:

chesw0301#show platform software acl tcam count

Showing TCAM counts

                                       Total    Used    Free

                  =======+=======+=======

TCAM A  Bank 0    16384      1188   15196

TCAM A  Bank 1    16384      283    16101

TCAM B  Bank 0    16384      16286  98

TCAM B  Bank 1    16384      16381  3

QoS TCAM

========

                                       Total    Used    Free

                  =======+=======+=======

TCAM A  Bank 0    16384      1188   15196

Other Errors:-

Dec 26 16:34:00: %EARL_CM-SW1_DFC1-5-NOTCAMENTRY: No free tcam entries available on tcam=1 bank=0

Dec 26 16:34:00: %EARL_CM-SW2_STBY-5-NOTCAMENTRY: No free tcam entries available on tcam=1 bank=0

Dec 26 16:34:00: %EARL_CM-SW1_DFC4-5-NOTCAMENTRY: No free tcam entries available on tcam=1 bank=0

Dec 26 16:34:00: %EARL_CM-SW2_DFC1-5-NOTCAMENTRY: No free tcam entries available on tcam=1 bank=0

CM-MSG:ERR Error programming tcam entries for fno:0 status:-2

CM-MSG:ERR cm_replace_req_hdlr: hw programming error for appid:8

CM-MSG:ERR Error programming tcam entries for fno:0 status:-2

CM-MSG:ERR cm_replace_req_hdlr: hw programming error for appid:8

CM-MSG:ERR Error programming tcam entries for fno:0 status:-2

CM-MSG:ERR cm_replace_req_hdlr: hw programming error for appid:8

CM-MSG:ERR Error programming tcam entries for fno:0 status:-2

CM-MSG:ERR cm_replace_req_hdlr: hw programming error for appid:8

Regards,

Pandiyan

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