[c-nsp] Migrating multi 1Gb port-chan member ints to 10G .....possible withot having to create a new portchan?

[CiscoNSP List]

Cheers, I labbed it up om ASR1001 -> 4948....now the ASR1001 had SPA1x5G, it had 2 working GE-Ts....added the same SFP's (Copper/GE-T), the ASR logged the insertion, you could vie the details of the SFPs, but we could not get them to link to anything (and yes, we had enabled the ports :).....SFPs worked fine in the 4948....put some single mode fibre SFP's and worked instantly.....job for another day to figure out)....any way setup a 2 port portchan, with 5 subints on ASR1001, vlan int on 4948, all worked as exected.....big test was removal of the 2 member ints on ASR1001 from portchan (Would it not allow it, or allow it, and delete the portchan/subints....thankfully, neither...It allowed the removal of all member ints, and just shutdown the portchan (Keeping al subints conf)......re-added the links, and all worked....replicated this on the ASR1006/4500X, and it also did the same....so a relatively painless change,, and we now have 2x10Gs in the portchan.


Thanks for all the suggestions - cheers.


________________________________
From: Pete Templin <petelists at templin.org>
Sent: Thursday, 15 June 2017 3:47 AM
To: CiscoNSP List; Cisco Network Service Providers
Subject: Re: [c-nsp] Migrating multi 1Gb port-chan member ints to 10G .....possible withot having to create a new portchan?

Copy the config off-box, trim it down to just the subinterfaces, copy
that resulting file to bootflash. Delete the members, add the new
members, and if you have to restore the subinterfaces, copy
bootflash:subints-config-bits running-config

It's not hard, you can have your ducks all ready to go, and drop it
right back in.


On 6/13/17 9:04 PM, CiscoNSP List wrote:
> Well tried this last night, and the ASR1K did not cooperate.....4500X, played nice and behaved like the 2960 (Adding 10G ports to the portchan, rejected them due to speed difference, but still adds them to the portchan, but in suspended mode....so all good there, but ASR1K, (As well as only allowing 4 member ints in a portchan.,,which was a tad inconvenient), when attempting to add the 10G port, it simply rejects them due to bandwidth, ie, does not put the port into suspended mode/add it to the member Ints config......so, if you remove the 1G links, portchan would have no members....you would have to add 10G members after removing all 1G.....but Im almost positive the ASR will not allow me to remove all the 1G ints, due to the subinterfaces (I didnt want to test this on the production ASR1K, maintenance window was only short).....so, going to test it on an asr1001, and see what the result is....I really really hope I can just shutdown the portchan, remove all the 1G ints, add the 10G;s then re-enable the portchan...I hope I dont have to remove portchan, remove 1G ints from it, re-create it, then add the 10G's.....subints are referenced in ospf/bgp etc....wouldnt surprise me if they were dynamically removed...other option is to change startup conf, save, reboot (Or potentially save, then replace running with startup.....but having done that on previous  occasions, it doesnt always go smoothly 😉)
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