Switching

Hello all!I have one question regarding arp protocol.I have a PC which connects to some other device in same network. My PC have an simply learned arp entry to other device.172.16.2.2 - 00-23-8e-e0-85-20So imagine situation if my other device (172.16...

Yesterday, we had an unexplained networking issue.  We were getting general slowdowns and 4-6 percent packet loss to our core router.  AFter checking our wiring closet, I found one port flashing orange...then going greeen.....then flashing orange...I...

Hi Gurus,Can you please advice me! Can i configure interface trunking, routing and dhcp services on the Cisco MDS 9148 switch?Thanks for your response!!

Hi,Can we actually change the timestamp format for switches/routers to include the DAY of the week in front of the the MONTH?Example:From:  Jan 26 17:40:00          (MM DD HH:MM:SS)To:     Wed Jan 26 17:40:00   (DAY MM DD HH:MM:SS)Most of the documen...

i have problem between WS-C6509-E and one of the SUN server, i have ping between them but suddenly it become request timed out, and it never back till i make clear arp to the 6500 ?

All,We have 2x C3560E-12D models that are loosing OSPF & PIM neighborships all the time. I guess this is becuase of high CPU. The switch is constantly running around 40-50% with the following processes "Adjust Regions" & "hpm main process":#sh proces...

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....