Hey everyone. I havent had to do this to often but need some assitance on running a loopback test with telco. We have a gig link with verizon and have been asked to run a test to their loop that is facing us. Not sure if I should select external or mac. When I run the test do I just ping my interface while it is in loopback mode?
ASR-1000
pcf-border(config)#int gigabitEthernet 0/0/1
pcf-border(config-if)#loopback ?
external Loopback towards line at the transceiver level
mac Loopback towards system at the MAC controller level
pcf-border#sh ver
Cisco IOS Software, IOS-XE Software (PPC_LINUX_IOSD-ADVIPSERVICESK9-M), Version 12.2(33)XNF2, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2010 by Cisco Systems, Inc.
Compiled Wed 07-Jul-10 01:19 by mcpre
ROM: IOS-XE ROMMON
pcf-border uptime is 8 hours, 52 minutes
Uptime for this control processor is 8 hours, 54 minutes
System returned to ROM by reload at 23:49:38 EST Thu Feb 17 2011
System restarted at 23:52:51 EST Thu Feb 17 2011
System image file is "bootflash:/asr1000rp1-advipservicesk9.02.06.02.122-33.XNF2.bin"
Last reload reason: Reload Command
cisco ASR1002 (2RU) processor with 1735082K/6147K bytes of memory.
4 Gigabit Ethernet interfaces
32768K bytes of non-volatile configuration memory.
4194304K bytes of physical memory.
7798783K bytes of eUSB flash at bootflash:.
