What do the parameters in the name of SP and SMU mean?

[ziyiliu]

I find the active packages in a ASR9k router, but I am not very clear about each of them, just need a confirmation, pls help.

RP/0/RP0/CPU0:RAG_SUKE02C_9K#sh instal activ sum
Mon Dec 6 20:37:13.559 ICT
Active Packages: 16
asr9k-xr-7.1.3 version=7.1.3 [Boot image]
asr9k-mpls-te-rsvp-x64-2.1.0.0-r713
asr9k-services-x64-1.0.0.0-r713
asr9k-k9sec-x64-2.2.0.0-r713
asr9k-mgbl-x64-2.0.0.0-r713
asr9k-mcast-x64-2.0.0.0-r713
asr9k-mpls-x64-2.0.0.0-r713
asr9k-ospf-x64-1.0.0.0-r713
asr9k-optic-x64-1.0.0.0-r713
asr9k-isis-x64-1.1.0.0-r713
asr9k-m2m-x64-2.0.0.0-r713
asr9k-9000v-nV-x64-1.0.0.0-r713
asr9k-base-64-4.0.0.1-r713.CSCvw57721
asr9k-gcp-fwding-64-1.0.0.1-r713.CSCvw73305
asr9k-fwding-64-4.1.0.1-r713.CSCvw57721
asr9k-mgbl-x64-2.0.0.1-r713.CSCvw20689

The first 11 packages are the components of system IOS and optional during an iosxr installation, right?

the last 4 with DDTS in the name are SMU, but why there's two SMU for one DDTS? and they're also the parts in an SMU package that I find in PIMS like below?

asr9k-x64-7.1.2.CSCvw57721

BTW, what do these mean? "-x64-", "-64-", "1.0.0.1" and "r" in the name of an active package of SMU.

@Xander Thuijs, I've read your article related to such a question, I will appreciate if you can answer my question.

Thanks in advance.

[AARON WEINTRAUB · Accepted solution]

If you notice for the two filenames containing CSCvw57721 that you posted above, one is -base- and one is -fwding-.  This means that the fixes that were needed for CSCvw57721 actually spanned two complete different modules of code - the base and then the fwding.  So two software changes were needed, one for each.  You download the SMU itself and inside that the router will patch as necessary each module I'm not sure there's a substantive difference to the layperson between -x64- and -64- besides sloppiness.  It might have to do with which particular branch something came from?  For example on syslog for IOS XR SSHD_ and BM-DISTRIB processes are capitalized and no others are - I am pretty sure that is just sloppy coding.  The 1.0.0.1 is the release/package version of that SMU and 'r' means release like release 7.1.3

[ziyiliu]

Thank you Aaron.