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Hi,I'm looking for the frame header and trailer sizes on a Cisco default hdlc serial link. The references I'm finding on the web vary quite a bit on what they should be. Some list a protocol field, some list a 16b CRC and some a 32b. What does Cis...
Hi,I am looking for a definitive list of which chassis have a calendar chip in them. I know the 7200 series does, but what else?Is there a list somewhere at Cisco that would have this info? I've looked but I can't find it if it exists.Thx,Greg
Hi,What port number is the h323 literal using? The documentation is missing the entry for this, and it could be multiple different ports.Or, is there any way to suppress the literal names and just get the original ports numbers when doing a 'show ac...
Hi,I am having a problem getting unequal cost load balancing to work. I am using EIGRP and have variance set to 3. I have this mocked up in my home lab to duplicate the problem at work. Here is link to a crude picture of the setup. http://www.ger...
I have a question about how the PIX handles passive ports. I know that in a passive ftp conversation, when the client outside the pix requests a data connection on port 21 to a server in the dmz, the server responds with a semi-random port address a...
The vlan.dat file is a major thorn to backing up switch configs. The main problem is that it is a binary encoded file, and there are no decoders that I know of. Yes, you could use tftp or CiscoWorks to back it up. However, if you have a switch fai...
AFAIK there is no way to bypass this requirement, and you'd be crazy to try. The Sup720 should boot up and run for 5 minutes. Beyond that and you are playing with fire, literally. These cards run hot, nearly 300 watts, double what a Sup2 requires....
Hi,bpduguard only kicks in when a port has 'portfast' turned on. Portfast should be off, i.e., in default spanning-tree mode, between two switches.bpdu guard is doing exactly what it should be doing in this case. Leave it on. It's portfast you wan...
You need to use the 'url-server' command to define the websense server and the 'filter url' command to define what traffic to watch. It would look something like:url-server (dmz2) vendor websense host 192.168.1.2 timeout 5 protocol TCP version 4filt...
1700 class routers only do 802.1q trunking. You will need a 2600 class or better for ISL trunking. There might be IOS feature sets necessary as well. In all cases, you can only do trunking on Fast Ethernet interfaces.Part of what determines ISL su...
