My Cat 2960 has a port configured with broadcast strom-control with a 10% threshold. I connect a PC on that port and make it generate a massive ARP broadcast message on that port to simulate an ARP strom to see how the switch bahaves.I can observe th...

The the refrence guide of Catalyst 4500 switch, it is said that MD5 check can be automatically be done at the boot during the copy from bootflash to memory.It is said that the comparison is done between the MD5 information in a README file and the co...

In a switched network where part of the switches are configured with Rapid PVST+ and part are with PVST+ (migration from STP to RSTP case),when a network failure occurs, I assume that part of the network converve slowly because of use of STP and the ...

I have two routers directly connected on two differents VLANs. The second router acts as a redundant router when the other fails. Multicats traffic shall be routed from one VLAN to the other through the redundant routers by using PIM SM.In this situa...

I have two routers 1760 serie with a WAN card WIC-1T inserted in slot 0.Unfortunetly, I cannot use the command "controller E1 0/0" in order to configure the source of the clock.Nor can I use the command "sh controller E1".The command "show diag" tell...