asr 1006 with rp2

[nc2005camping]

should this run in rpr or sso mode?

[Vinit Jain]

It totally depends on your requirement. But if you have redundant RP's then the best option is to run SSO mode to minimize the service impact.

[nc2005camping]

With dual rp1's, I understand. With an rp2, I would assume the same. A show redundancy is not a clear from this ouput. i will have to read more about an rp2.

RICRT03-WANAGG#sho redundancy
Redundant System Information :
------------------------------
       Available system uptime = 3 hours, 54 minutes
Switchovers system experienced = 0
              Standby failures = 0
        Last switchover reason = none

                 Hardware Mode = Simplex
    Configured Redundancy Mode = sso
     Operating Redundancy Mode = Non-redundant
              Maintenance Mode = Disabled
                Communications = Down      Reason: Failure

Current Processor Information :
-------------------------------
               Active Location = slot 6
        Current Software state = ACTIVE
       Uptime in current state = 3 hours, 54 minutes
                 Image Version = Cisco IOS Software, IOS-XE Software (X86_64_LINUX_IOSD-ADVENTERPRISEK9-M), Version 15.1(3)S, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2011 by Cisco Systems, Inc.
Compiled Thu 21-Jul-11 22:41 by mcpre
                          BOOT = bootflash:asr1000rp2-adventerprisek9.03.10.05.S.153-3.S5-ext.bin,1;
                   CONFIG_FILE =
        Configuration register = 0x2102

Peer (slot: 7) information is not available because it is in 'DISABLED' state

[Vinit Jain]

Since you are having Single RP and SSO mode configured, the router will have a software based redundancy. i.e. the ASR1k will run two instances of IOSd process for redundancy purposes on the linux kernel.

The only thing that needs to be worried about is, if you are having sufficient DRAM.

By default, the ASR1k system allocates 50% DRAM for iosd and 50% for linux kernel. and with Software based redundancy, the 50% of available DRAM will then be halfed as well. i.e. each iosd instance will be having 25% of all memory.

Hope this helps you in deciding if you need to have a redundancy mode configured or not.

Regards

Vinit