Switching

How can you view which port(s) are designated trunk ports? On a 3524 xl, I set a port to trunk mode and doing sh int or sh run or sh vlan does not indicate anywhere that this port is in trunk mode.thanks

We have pulled in our first fiber cable between two buildings and I was wondering if there is any special configuration needed to get a link going with glc-sx-mm. I have done the basic test on the fiber with an led light source and there is light co...

Hi to all,I've configured an erspan session between two Cat6509 but in the source, the monitor session is always "shutdown" and it doesn't change when i put the no shutdown command.Here is the configuration:SOURCEmonitor session 12 type erspan-source...

Traditional LAN design suggests limiting subnet sizes with a /24 being one of the more commonly seen subnet sizes per VLAN. This is typically to limit the number of broadcasts & un-bounded multicasts.I imagine these suggestions came from the days wer...

Hi Guys,When i am trying to configure the ip address under the tunnel interface i am getting the below erroeauto syncCan anyone put some light on this.ThanksMahmood

It appears (to me at least) that the documentation (Command References) and command lookup tool provide elusive/and almost contradict each other on what the default behavior is) for:no ip gratuitous-arpsip gratuitous-arpsOn top of that it appears tha...

Hi;When we check the cpu usage of the switch ,we take this output.Isn't it high ? What could we do to reduce ?We have about seventy vlan with HSRP, eighty edge switches with fiber. We dont use BGP protocol, only a few static routes.Thanks.Ios ver : C...

Hi EveryoneI want to create a port span for a vlan which has around 80 servers. I know monitoring a physical interface has virtually no performance effect on the switch but im not too sure about a vlan with 80 servers. The switch is a 4506. The outpu...

Hi.There is a 6506 with two supervisors:Supervisor Engine 32 8GE WS-SUP32-GE-3BOn supervisor was in active mode while another one was in hot mode:5 9 Supervisor Engine 32 8GE (Active)6 9 Supervisor Engine 32 8GE (Hot)One day 6506 unexpectedly...

HiWhy do we have the command "switchport access vlan 401 " for this interface when it is trunking interface GigabitEthernet0/47 description trunk downlink switchport access vlan 401 switchport trunk allowed vlan 400-510 switchport mode trunk

I have been reading and reading and trying to figure out the defaults for 'ip cef' and 'ip cef distributed' on Catalyst Switches.i.e. 3750, 3560s, 2950s, 2940s, 4500s and 6500s.Wouldn't/Isn't the default that Cisco Expressing Forwarding is enabled.Th...