RE:Commands explaination of vlan access-map,vlan internal allocation policy & spanning-tree extend system-id

[ambivert skill]

Hello Experts,

Please let me know the reason of using following commands

!
redundancy
mode sso
main-cpu
auto-sync running-config
spanning-tree mode pvst
spanning-tree extend system-id
!
!
vlan access-map Sec 10
match mac address HAT
action drop
!
vlan internal allocation policy ascending
vlan access-log ratelimit 2000
!

Thank You

Ambivert Skill

[Reza Sharifi · Accepted solution]

Hi,

If you need to know what each command does, look at the command reference guide for the IOS you are using

spanning-tree mode pvst

There are different types of spanning trees you can use, in this case the spanning tree mode is pvst.

spanning-tree extend system-id

from the command reference guide:

The Catalyst 6500 series switch can support 64 or up to 1024 MAC  addresses. For a Catalyst 6500 series switch with 64 MAC addresses, STP  uses the extended-system ID and a MAC address to make the bridge ID  unique for each VLAN.

You cannot disable the extended-system ID on a Catalyst 6500 series switch that supports 64 MAC addresses.

Enabling or disabling the extended-system ID updates the bridge IDs of  all active Spanning Tree Protocol (STP) instances, which might change  the spanning-tree topology.

vlan access-map Sec 10

vlan filter

here is command reference guide:

http://www.cisco.com/en/US/docs/ios/lanswitch/command/reference/lsw_book.html

HTH

[ambivert skill]

Thanks for this information and explaination.

Regards

Ambivert Skill