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mac access-list c3750 limitations

Hello,

        In out subnetwork we are using many internet lines and accessing these inernet lines reachability is controlled via cisco mac access-list which is configured and applied on the C3750 switch.

everything was working perfectly with no  problems.

recently we descovered that problem occure and the access list lines got decreased. "some lines deleted"

the question is:

How many lines supported by cisco mac access-list in the cisco switch c3750 that can be used ?

sample:

mac access-list extended LB-3
 permit host b0bb.8b00.235a host 5cac.4c3e.ae18
 permit host b0bb.8b00.235a host 0026.8269.ec0d
 permit host b0bb.8b00.235a host d8bb.2c23.3db3

interface GigabitEthernet1/0/6
 description MANAGERS-LB
 switchport access vlan 17
 switchport mode access
 switchport nonegotiate
 mac access-group LB-3 in
 spanning-tree portfast

 

Thank you,

3 Replies 3

balaji.bandi
Hall of Fame
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Not sure how many ACL you have in that Switch. here is the Limitation i see based on CPU overhead space. ( what is the device CPU (you can check show process cpu hist)

 

https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst3750/software/release/12-2_52_se/configuration/guide/3750scg/swv6acl.html

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hi,

sorry for the late reply.

I have checked the link, but still nothing talking about mac access-list "Entries, lines" supported per port.

Joseph W. Doherty
Hall of Fame
Hall of Fame
Limit might depend on SDM template being used. You might check your TCAM resource utilization.
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