Mgmt port ASR1002

[mlwilliamson]

Is it possible to use the mgmt port when in rommon mode?

I use the Mgmt port when IOS is loaded and it works fine. I reboot the router, issue a break to put it in rommon and have set some variables but my Mgmt port never has link and I cannot ping it from the network. In rommon mode it looks like this:

PS1=rommon ! >

MCP_STARTUP_TRACEFLAGS=00000000:00000000

BOOT=bootflash:asr1000rp1-adventerprisek9.03.07.03.S.152-4.S3.bin,1;

IP_ADDRESS=10.71.50.101

IP_SUBNET_MASK=255.255.255.0

DEFAULT_GATEWAY=10.71.50.3

BSI=0

RANDOM_NUM=1133006948

RET_2_RTS=13:38:27 EDT Wed Jun 5 2013

RET_2_RCALTS=1370453907

?=0

I am new to the ASR so I may be confused and this is not how it is supposed to work. Should I be able to ping the mgmt port or telnet to it when the router is in rommon using the Mgmt port on an ASR 1002?

[Bilal Nawaz]

Hello, I have configured ASR's but not messed with them in Rommon mode, I've never had that situation before...

Have a look at this and see if it helps at all:

http://www.cisco.com/en/US/docs/routers/asr1000/configuration/guide/chassis/Management_Ethernet.html#wp1058900

Please rate useful posts & remember to mark any solved questions as answered. Thank you.

[paul driver]

Hello

As far as I am aware this is not feasiable, the physical interfaces are only intitated in rommon mode when the tftpdnld is acitvated.

res

Paul

Please don't forget to rate any posts that have been helpful.

Thanks.

[mlwilliamson]

Paul

What you are saying and what I am seeing agree. When I am in rommon the mgmt interface does not appear to function, gets no link light, nothing - so your statement would appear to be correct. I guess what was confusing me was this statement in the documentation for the mgmt ethernet port - it states that you can assign ip addresses to the mgmt ethernet port in rommon mode (I pasted below). So I guess the only purpose of having an IP on the mgmt port in rommon mode is so you can use the mgmt port to initiate the tftpdnld and restore an IOS image - not really for access the router when it is in rommon for troubleshooting, etc. Would that be true?

http://www.cisco.com/en/US/docs/routers/asr1000/configuration/guide/chassis/Management_Ethernet.html#wp1058900

It states the following:

On the Cisco ASR 1000 Series Routers, IP addresses can be configured in ROMmon (the IP_ADDRESS= and IP_SUBNET_MASK= commands) and through the use of the IOS command-line interface (the ip address command in interface configuration mode).

Assuming the IOS process has not begun running on the Cisco ASR 1000 Series Router, the IP address that was set in ROMmon acts as the IP address of the Management Ethernet interface. In cases where the IOS process is running and has taken control of the Management Ethernet interface, the IP address specified when configuring the Gigabit Ethernet 0 interface in the IOS CLI becomes the IP address of the Management Ethernet interface. The ROMmon-defined IP address is only used as the interface address when the IOS process is inactive.

For this reason, the IP addresses specified in ROMmon and in the IOS CLI can be identical and the Management Ethernet interface will function properly in single RP configurations.