Switching

Reference the attached diagram. Currently, we have a pair of Nexus 5K switches with virtual port-channels to a pair of unstacked Avaya 4850GTS-PWR switches.  This requires four Cisco SFP+'s, and four Cisco SFP's for 10Gb connectivity.  Half of the c...

Even though extended VLANs in version 3 are stored in the vlan.dat file (in version 1 and 2 they were not), they still cannor be pruned. What is the reason for that ?

i was just handed over administration of a cisco 2960, i was surprised to see that it had telnet instead of SSH. but when i tried to set up ssh. the crypto and the IP SSH commands do not exist.!  Switch(config)#crypto ?% Unrecognized command am i m...

Hi All, Appreciate if someone call reply asap. I have to do IOS upgrade for 2 x cisco 6509-E switches.  Please note that both of switches are not in VSS pair. They are in standalone mode and with hsrp configured. Both switches have dual sup2t so I'm...

in eigrp i can filter routers using 1.ip prefix list 2.access list 3.router map  can i use these 3 ways to filter routers in ospf or is there any separate methods for ospf

Hello all, I am still new to the switch/networking world, so if something seems 101A to you, enlighten me. We have this switch and everytime we have a power outage or need to reboot it, it boots the default "loader" (nothing working) image. In order...

I am having issues on several switches (Catalyst 2960X-24PS and 2960X-48LPD IOS 15.2(5b)E) with several Avaya 1120E VoIP phones. The issue seems to be related to port-security. Initially I had my interfaces configured like this: switchport access vla...

I have a video application using Multicast and have been given a VLAN to use.  Hardware is Catalyst C3850 switches.  All on the same VLAN.  The customer requested that management interfaces on the switches be configured on the same VLAN as everything...

what is the diffrence between policy based routing and route filtering

Has Cisco stopped manufacturing the CAB-1309-C19-INT? This power lead is for the 6000W PSU for a Catalyst 4500 chassis. It has a C19 at the switch end and an IEC309 at the supply end, and is about 4m long. My usual Gold Partner can't get hold of any....

hi all  We have a Switch Catalyst 4500 and er faced high cpu cause by iosd        #sh processes cpu sorted Core 0: CPU utilization for five seconds: 23%; one minute: 24%;  five minutes: 21% Core 1: CPU utilization for five seconds: 29%; one minute:...

We are looking to upgrade from our Cisco 6509-E single sup720 at the core

Hello, Can anyone tell me how to configure a switch port for a pc and IP phone. If we are assigning singe port to two different vlan, how switch will separate traffic ?  Regards, Abhijith