Switching

We are  experiencing  ARP resolution error between two blade servers within the same enclosure. We were able to use the static ARP workaround to temporarily fix the problem, but it is broken again, and now it is not pingable. The Blade Servers are co...

Guys, I have a problem with Cisco 4006 switch.When I do 2000-continuous ping to directly connected servers interface (NIC), I notice about 10 or so, packet loss.  I have no clue to find out, whether this problem within the switch IOS “cat4000-is-mz.1...

Does the Nexus 7000 NX-OS Release 5.0 support user names starting with a number?

Good day friends!I have some problems with NTP and I don't understand how to solve this problem.Network topology:2 NTP servers in LAN (10.0.43.7 and 10.0.43.215) based on CentOS (Linux) - this ntp servers works properly.I have got CISCO 2811 (10.0.42...

HI ALL, I AM FACING PROBLEM WITH GRE TUNNEL FLAPPING BUT THE OUTPUT (SHOW LOGGS ONLY DISPLAY ) LINE PROTOCOL FLAPING AND SUDDENLY IT GETS CONSTANT NOW EVERYTHING IS FINE BUT THIS IS THE SECOND TIME WE R FACING THE SAME ISSUE.. ALSO THE FRAGMENT TABLE...

Guys we are seeting up new datacentre in which the customer requirment is that we have to install fibre 10G between core swicthes and CE routers. Core swicthes are 6509E and CE routers (same premises) would be juniper MX480......now when i did show m...

Hello,I have encountered a strange issue I have never seen before.I have a 2811 router Fa0/0 interface connected directly to a C3750E gigabit switchport with a normal UTP patchcable.Both sides are configured with speed 100, duplex full, but the switc...

Dear All Expert,In my work , there has some spare cisco 2811 routers. One spare router which are not power on, configured as operational active router, which is gone when i checked with power on, so i checked which is fault, and found that power supp...

We have port security turned on:switchport port-securityswitchport port-security maximum 2switchport port-security violation restrictWe were getting an error on the port (with only 1 device connected to this port):Sep 16 15:49:42: %PORT_SECURITY-SP-2...

Hallo, we have a cisco 1803 isr router connected to a 4Mbps shdl line.We use the line for data and voip.HERE IS PART OF SH VERrouter1803# router1803#show version Cisco IOS Software, C180X Software (C180X-ADVIPSERVICESK9-M), Version 12.4(6)T5, RELEASE...

I have an 1841 Lab Router that will decompress a known good IOS and load up to the crypto message before locking up.  I was informed this problem started because a new IOS was loaded to play with some VPN settings (this is a lab router).  That said I...