Switching

Hi,I've got problem with port security on port Fast4/4. There is currently Cisco IP phone 7961 connected and nothing else. I still get PSECURE_VIOLATION. What can cause the problem? Please help. Thank you.Here are my logs and configuration:#show logg...

Hello All,I have an ASA 5505 firewall that I want to use to share an office internet connection fairly.I need to create VLANs for office1 and office2.   office1 and office2 are separate companies within the building so they should not be able to comm...

Hi all,There is huge packet loss on router LAN (GE) interface, this is router configured with site to site VPN & also running with HSRP standby mode.There is no packet loss in outside public intreface, it is problem with only LAN side interface. It i...

Hi,If I have configured errdisable detect all globally, would I need to configure udld enable in addition or is it overlapping ?ThanksArun

Hi, I have 2 layer 2 switches interconnected that will be handing out ip's for the same network . I would like to know the best way to configure dhcp. Currently I have the range split with sw1 giving out half the address range and switch 2 giving out...

Hi all,I tried to understand what I need to configure on cisco switch if I want failover two NICs on single server but did not find simple answer for that. Somebody recommends to configure etherchannell and somebody suggest load balancing.Please see ...

I don't know what is going on with my switch. I can't access the any kind of prompt after reboot. This switch will reboot normaly until it reaches the *Mar  1 00:00:49.863: %CRYPTO-6-ISAKMP_ON_OFF: ISAKMP is OFFand then nothing - it doesn't continue....

Just looking for pros/cons if I design a 2 qty 3750 stack as the only core…meaning no redundant core. This design avoids Spanning tree and the only disadvantage I can see is we are stuck to one IOS (since there is no backup core to run a diff ios) o...

I have bought a new 2960 switch. The IOS image does not support ISL encapsulation. As I would like to test some STP features, which IOS image does support ISL encapsulation? And how can I get it? Thanks.

Dear All,I would like ask you about IOS Lan lite and Lan base what are different for both IOS?Best Regards,Rechard

Hello all, I have a question regarding supervisor redundancy on a 6500 running in native mode. I recently had one running with a single sup and when I added the redundant one, it went to Cold status. I discovered that was due to the IOS code being di...

Dear AllMy switch is running very well but suddendly it crashed and I cant ping the switch anyway. When I use console to login to the switch. It appears alot of log messages (flushing message log) and It repeats log message and nonstop, it's same as ...