Switching

Hi Gents,I recently found out that obe of the stack port on my 3750x is faulty thus failig the ring status of my 2x3750x. With the troubkeshooting that i did, i finaly concluded that the problem is on the port of the master switch. See status below.S...

I have two Cat 6513s in a VSS configuration running Supervisor 2TsI also have a Cisco Emergency Responder srver that is trying to query the switches in order to get port information for phones/zones, etc.The CER server keeps getting timeouts and cann...

pls suggest how to recover the standby supervisorn from rommon mode

Hello,Should I be trusting ARP on trunk ports?  I have a couple of switches that are trunked and one of the switches it providing DHCP to hosts on both switches, I have IP DHCP snooping already running on both, but isn't trusting ARP on the trunk bas...

I'm trying to add extcommunity list, but it doesn't go in. There are no any lists with that name before in config. Router is Cisco 7609, with image: c7600rsp72043-advipservicesk9-mz.122-33.SRC1<br /><br />ROUTER1(config)#ip extcommunity-list 39 permi...

Hi all, I want to understand how cisco places its firewall in datacenter. I mean, lets consider a scenario where there is 1 6509E switch with SUP 720 providing 720Gpbs backplane. They have around 50 servers connected over 1G (few of them using port c...

I have a Cisco 2960s stack. I trying to trunk a port with an Avaya POE switch. Port is trunked on the Cisco side correctly (I believe). When you configure tag all on the Avaya side, I lose all communication with that switch. Only 2 VLANs on both swit...

Is there any method to improve etherchannel performance? Please be kind throw some light here. Thanks.

Hi,I have got an cisco router with 3 interface. Interface FA 0/0 is an outside interface and interface fa0/1 and fa0/2 are inside interface.Int Fa0/0Desc Connected to Outside, the inside internet traffic passes through this routerip address 192.168.2...