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Showing posts from 2014

Device upgradtion consideration

It's important to consider certain things when upgrading to a newer device. Rack Space power [ AC/ DC / socket type ( C14/C15 - C19/C20 etc) Rack type and mounting brackets and screws IOS Feature comparison does all the features supported in the newer image - double check [ sometime we downgrade the device eg: move the powerful device where most needed] Access to the technicians Interface Type and fibre patch cords [ lc / sc / fc ] , length. If we are moving the device from a different location, ensure that it is properly transported and wrapped in appropriate cartons before proceeding with the migration plan.

CCIE SP TCL IOS XR reachability Script with source address

Following Script will work to check the reach-ability in IOS XR with source address Execute run tclsh Then you can place the TCLSH commands : set i "9.9.0.3" foreach X { 9.9.0.1 9.9.0.2 } { ping -s $i $X } Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 9.9.0.1, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 9/11/19 ms Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 9.9.0.2, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 1/2/9 ms

wireshark continous capture on windows - dumpcap

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I've noticed Wireshark memory utilization increases when we use the GUI and it crashes eventually when we use it for continuous capture. Therefore better to use the dumpcap utility which comes with wireshark. First find out the interface , using dumpcap -D C:\Program Files (x86)\Wireshark>dumpcap.exe -D 1. \Device\NPF_{0A4C8668-EAC9-457F-9337-3C4EFCD43AAF} (Ethernet) 2. \Device\NPF_{1F2A8923-0CAD-4160-BBD7-EB11D6B45883} (VirtualBox Host-Only Network) 3. \Device\NPF_{1BB23144-4E34-42D9-92AB-C939B21119A3} (WiFi 2) 4. \Device\NPF_{3C5A536B-5BF8-42AA-A139-32FB360DA95C} (WiFi) 5. \Device\NPF_{A8EF2C83-9A49-4A9E-96E4-2128784ABD6B} (VMware Network Adapter VMnet1) 6. \Device\NPF_{EDB4678A-A120-47A1-A5BF-950A6F1DFA0E} (Local Area Connection 2) 7. \Device\NPF_{F33132F7-A8F9-4E2D-8D35-32A9F662C1C8} (VMware Network Adapter VMnet8) then start the capture, we can define the parameter which rotate the file ( eg: duration , bytes ) Output (files): -w name of file to sav