A handy little chart adapted from some old training material that lists a few of the common WAN circuits and how they rank according to speed.
I like to use this when I’m explaining to someone that a T3 is not three T1’s bonded together……
Archive for the ‘Routing’ Category
Common Circuit Types and Bandwidth
Posted by Chris on August 9, 2009
Posted in Networking, Routing, WAN | Tagged: Networking | 1 Comment »
Cisco “show diag” Interpreter
Posted by Chris on May 2, 2009
Here’s a helpful documentation and troubleshooting tool.
Paste the output of the “show diag” command from a Cisco router into an email. Send the email to diag@external.cisco.com. Within a few minutes you’ll receive a reply with a listing of part numbers for the router and installed modules.
Here’s an example of the show diag output (abbreviated)
Slot 0:
C2650 1FE Mainboard Port adapter, 2 ports
Port adapter is analyzed
Port adapter insertion time unknown
EEPROM contents at hardware discovery:
Hardware Revision : 0.0
PCB Serial Number : JAD06200P1E (2212953557)
Part Number : 73-5024-05
etc……
WIC Slot 0:
FT1 WAN daughter card
Hardware revision 1.3 Board revision C0
Serial number 28073293 Part number 800-03279-04
Test history 0×0 RMA number 00-00-00
Connector type Wan Module
etc…..
And the return email:
Slot 0: CISCO2650 Mainboard
Slot 0: WIC-1DSU-T1
Posted in Cisco, IOS, Networking, Routing, Switching | Tagged: Cisco, IOS Commands, Networking, Routing | Leave a Comment »
The Cisco IOS ‘more’ command
Posted by Chris on February 24, 2009
A co-worker was on a call with TAC today and noticed the Cisco engineer using the more system:running config command.
It turns out that more system:running config is the replacement for write terminal and was introduced somewhere around IOS 12.1 from what I can tell.
It also displays the same information as show running-confiig with one exception, more system:running-config will display VPN pre-shared keys in clear text.
There were a number of new file management commands introduced in IOS 12.1 and 12.2. Check out the Cisco IOS Configuration Fundamentals Command Reference pdf for more information.
The more command also works on an ASA. Here’s the output from an ASA5505:
asa5505# more ?
/ascii Display binary files in ASCII
/binary Force display to hex/text format
/ebcdic Display binary files in EBCDIC
disk0: File to display
flash: File to display
ftp: File to display
http: File to display
https: File to display
smb: File to display
system: File to display
tftp: File to display
Posted in ASA, IOS, Networking, Routing, Switching | Tagged: ASA, IOS Commands, Networking, Routing, Switching | Leave a Comment »
