Switching

I am trying to track down a packet that seems to be disappearing in our ditribution switch.  The sniff shows a destination mac of 000b.450d.000a, however, i do not see this mac address anywhere in the switch.  I am seeing the STP VLAN mac as 000b.450...

This is the output of a "show spanning-tree on a Catalyst 3524 using IOS 12.0(5)WC16Spanning tree 1 is executing the IEEE compatible Spanning Tree protocol  Bridge Identifier has priority 32768, address 000c.309e.af80  Configured hello time 2, max ag...

Hi,I can't test this out, right now. I was hoping someone here knew the answer. :) I was wondering is there a significant performance impact of putting "ip nat inside" on a 6500 interface. Assume CEF is on. Is all non-nat/nat traffic over the interfa...

I have an issue and I think I know the answer but I thought I would run it by you all.I'm implementing an ospf network and I'm not able to establish an adjacency with one router. Now the router has an interface with a /16 network, whereas everything ...

Hi all,How to take backup (sh run) of router automatically (weekly) on a perticular server?Its about 900+ branches.Pl suggest,

I'm trying to clean-up some configs and wanted to confirm some info. A port that is configured as SWITCHPORT MODE ACCESS, has no reason to have SWITCHPORT TRUNK ENCAPSULATION DOT1Q also configured, correct?                  

I'm looking at the release notes here http://www.cisco.com/en/US/products/hw/modules/ps2706/products_tech_note09186a00808330a9.shtml#config where it says"Note: When you have a WiSM installed on a switch that runs Cisco IOS                 Software Re...

Hi,What is the procedure for installing a new flash and  a new IOS on 6500 switch? Can we remove the old one and insert the new flash while operational or should we shut down the switch ? Regards.

HelloThis 2924 switch is reporting very high process memory usage. I cannot help noticing that holding column of show proc memory is highest for the IP SNMP usage.Is it normal for IP SNMP to require a lot of memory or could it be a memory leak?xxxxxx...

HI all:We have several switches PoE Cisco 3560 (cisco WS-C3560-48PS (PowerPC405) processor (revision Q0)  for our IP phones. We needed to migrate to a SSH enabled IOS (c3560-ipbase-mz.122-35.SE5) The IOS we got was: c3560-advipservicesk9-mz.122-46.SE...

Hi,I have problem with cisco 3560 switch i set up the network for 2 vlans 100 & 200 and i have direct internet cable to G0/3, now i need the people in vlan 100 and 200 to access the internet.i have configured g0/3 with the following;no switchportip a...

Hello All,I have some strange problem while trying to use the console to configure Catalyst 4507, Im using rollover cable, normal serial setting (9600-8-none-1-none). Switch has 2 supervisor engines ( Supervisor II-Plus).The problem is that, I can se...

Hello there,I have 2 units of CAT6509-E distribution switches. Each switch will has 2 x WS-X6708-10G-3C 10G modules (on slot 1 and slot 2).I am thinking of doing layer-2 2 x 10G port channeling between the 2 distribution switches. Is there any known ...