Switching

hi! we have cisco catalyst 6500 and i have noticed strange line in logging auth-event (gi*/*) link down auth-event (gi*/*) link up what does it mean? and how to understand what was the reason of this line to appear.

Hi, I am having problems routing on our LAN. I have configured vlan in one network and need to use one of these port on another switch on another part of the network.++++++++++++++++++++++++++++++++++++++++6509_1 core_distrib3750 access_1 (can access...

We have a 3560 switch that locks up (lighs full on with no variation). The only solution is to remove power. Is a typical symptom to a known issue??

Hello,Were can I find brief info on what CRC, input errors, output errors, runts, giants, throttles etc mean?Collisions I think would mean duplex issues what are late collisions?Thanks

I hope I posted this in the correct forum. I'm re-doing my network and I have a 2621XM router that's handling my internet traffic with some decent access-list, but I want to use my PIX for my firewall since I don't have enough flash to upgrade to 12....

Hi,Currently we have to write a document where it will be specify norms about our telecom infrastructure outside of our datacenter it-self. the scope of this documents will start at the user's computer desktop will pass by telecommunication and will...

I have tried to configure ssh on 2611 router but there is no 'crypt key generate rsa' command in global configuration mode.Hear is the result of 'show version' command. Any ideas why? ThanksCisco Internetwork Operating System SoftwareIOS (tm) C2600 S...

Hello,we have several cisco ce520-24pc-k9 access switches that all have two uplink connections to two HP Procurve 54012zl edge switch (one uplink to every HP switch).But the ce520 is standard using PVST+ as a spanning tree protocol, but the HP use Mu...

Hi,please tell me the difference or similarity between GRE and IPSEC tunnel.Can they both be used for same purpose.Thanks,

Hi, we just have a new 2851 router come in and I powered it up. howerver after initialing the memory checking, it goes not go any anywhere? any idea ? it's brand new, just out of box. thanks

Hi,I installed a GLC-FE-100BX-U transceiver in a C2960-8TC-L switch running the latest IOS, but the interface doesn't come up.Do I have to configure 100M sfp support somehow?sh int shows "media type is 1000BaseLX SFP" at the moment.

Hi,I have got a question about stack of the 3750 switch. I need to add one more member to the stack.After configured the switches priority and downgrade the IOS version same to the master in 3750 stack.then I connect the stack cable and power on the ...