Switching

We have verified that 2811 routers running 12.4 versions of code are behaving this way:1) An IP address is released by a client2) The arp cache for the router still has the client's mac address3) A new client boots up and sends a DHCPDISCOVER4) The D...

Hello All,I'm setting up a new data center with two Nexus 7000 and one Nexus 5000 . The 5000 is connected to both 7000s using a vPC ( all is done by the book and the vPC is working very well).If I enable any VLAN interface on the 5000 then I start ge...

which ios version I have to install on 6500 Switch to be able to configure "link state tracking" feature ?I was looking for this command in "Command Lookup" tools but without any results but I can configure this feature with the previous command on 3...

Hi,Looking for someone that might know what we are missing in this config.We have a Linux server with 2 ports bonded together using 802.3ad LACP (config below)Bonding Mode: IEEE 802.3ad Dynamic link aggregationTransmit Hash Policy: layer3+4 (1)MII St...

Can anyone explain to me why, when you create an SVI (interface vlan10) on a Catalyst switch, the vlan interface doesn't actually come up/up until a port goes live on that switch?This is more of a curiosity than a problem.thanks!

Hi,I'm having problems getting our Nexus 7000 to authenticate users from our Windows domain. If I set up a user within the ACS server and use the CiscoSecure database for password authentication it works fine.In the logs on the nexus I receive the fo...

Boot Loader (C2950-HBOOT-M) Version 12.1(11r)EA1IOS (tm) C2950 Software (C2950-I6K2L2Q4-M), Version 12.1(22)EA12cisco WS-C2950G-24-EI-DC (RC32300) processor (revision L0) with 19912K bytes of memory.We have a redundent configuration with two 3640s co...

We recently installed a new DS3 circuit, and I am having a monster of a time getting a route-map to work properly. I know I am missing something simple,  but I can't find it.  I've changed this so many times I have a headache, but nothing.Setup is as...

Hello,I have read the Network Virtualization Services Edge Design Guide (single tier routed FWSM implementation) but still can't figure out how I am going to solve the problem of overlapping customer IP addresses without using NAT (which I am current...

All,Is there a way to see the bandwidth usage on a layer 2 port of a switch? I have tried, not working.Thanks 30 second input rate 0 bits/sec, 0 packets/sec 30 second output rate 0 bits/sec, 0 packets/sec L3 in Switched: ucast: 54217685 pkt, 15613598...

I have multiple uplinks to more than one switch and I pass multicast to the other switches via layer2. One of the switch, a 3560G-24 seems to be receiving the data because of the stats on both interfaces but the server connected to the switch is not ...