[c-nsp] MPLS TE conver from IOS to IOS-XR

Thu Feb 23 08:39:14 EST 2012

Yes, now that I think about it, it might be helpful to have a knob to instruct a group of tunnels to use or exclude a particular hop 

adam

-----Original Message-----
From: Oliver Boehmer (oboehmer) [mailto:oboehmer at cisco.com] 
Sent: Thursday, February 23, 2012 2:00 PM
To: Vitkovsky, Adam; Gmail
Cc: cisco-nsp at puck.nether.net
Subject: RE: [c-nsp] MPLS TE conver from IOS to IOS-XR

> Well for auto-tunnel it's dynamic by definition right?
> I'm not sure whether you might somehow specify NHs that auto-tunnels should
> use -doesn't make sense

yes, agreed, but you might want to specify some NHs the tunnels should NOT use (i.e. exclude).. 
but in 99% of the cases, dynamic is the way to go..

> Though you could use affinities in order to exclude some of the links used
> by auto-tunnels

indeed, so one could use this as a workaround..

	oli

> -----Original Message-----
> From: Gmail [mailto:jstuxuhu0816 at gmail.com]
> Sent: Thursday, February 23, 2012 1:00 PM
> To: Vitkovsky, Adam
> Cc: Oliver Boehmer (oboehmer); cisco-nsp at puck.nether.net
> Subject: Re: [c-nsp] MPLS TE conver from IOS to IOS-XR
> 
> I know, but my situation is auto-tunnel mesh.
> 
> Thanks and regards,
> Xu Hu
> 
> On 23 Feb, 2012, at 19:35, "Vitkovsky, Adam" <avitkovsky at emea.att.com>
> wrote:
> 
> > In XR you’ll configure it the same - “path-option 1 dynamic” or “path-
> option 1 explicit name” under the tunnel-te interface
> >
> > adam
> > ________________________________
> > From: 许虎 [mailto:jstuxuhu0816 at gmail.com]
> > Sent: Thursday, February 23, 2012 11:58 AM
> > To: Vitkovsky, Adam
> > Cc: Oliver Boehmer (oboehmer); cisco-nsp at puck.nether.net
> > Subject: Re: [c-nsp] MPLS TE conver from IOS to IOS-XR
> >
> > Yes, correct. One more thing, in the IOS we configure the " tunnel mpls
> traffic-eng path-option 1 dynamic"  to automatic calculate the path, now in
> the IOS-XR, no more?
> >
> > Thanks/Xu Hu
> > 在 2012年2月23日 下午6:15，Vitkovsky, Adam
> <avitkovsky at emea.att.com<mailto:avitkovsky at emea.att.com>>写道：
> > I'm sorry the auto template is only used in ios
> > In XR you can specify the autoroute announce under attribute set
> > And than use that with the group
> >
> >
> > adam
> >
> > -----Original Message-----
> > From: cisco-nsp-bounces at puck.nether.net<mailto:cisco-nsp-
> bounces at puck.nether.net> [mailto:cisco-nsp-
> bounces at puck.nether.net<mailto:cisco-nsp-bounces at puck.nether.net>] On Behalf
> Of ??
> > Sent: Thursday, February 23, 2012 10:48 AM
> > To: Oliver Boehmer (oboehmer)
> > Cc: cisco-nsp at puck.nether.net<mailto:cisco-nsp at puck.nether.net>
> > Subject: Re: [c-nsp] MPLS TE conver from IOS to IOS-XR
> > Hi Oil,
> > Below is my whole config of the ASR9K,  now the tunnel can up.
> >
> > mpls traffic-eng
> > interface TenGigE0/0/0/0
> > !
> > interface TenGigE0/1/0/0.1700
> > !
> > auto-tunnel mesh
> > group 1
> >  destination-list 1
> > !
> > group 2
> >  destination-list 2
> > !
> > tunnel-id min 1001 max 2000
> > !
> > auto-tunnel backup
> > tunnel-id min 2001 max 3000
> > !
> > reoptimize 25
> > !
> > mpls ldp
> > graceful-restart
> > traffic-eng auto-tunnel mesh
> > group 1
> > group 2
> > !
> > interface TenGigE0/0/0/0
> > !
> > interface TenGigE0/1/0/0.1700
> > !
> > router ospf 100
> > area 0.0.0.0
> > mpls traffic-eng
> > mpls traffic-eng router-id Loopback0
> > But i don't find the autoroute-announce under traffic-engineering submode
> > or under the group 1& 2.
> >
> > Many thanks.
> > Hu Xu
> >
> > 在 2012年2月21日 下午7:38，Oliver Boehmer (oboehmer)
> <oboehmer at cisco.com<mailto:oboehmer at cisco.com>>写道：
> >> Hu,****
> >>
> >> ** **
> >>
> >> you indeed want to configure ****
> >>
> >> ** **
> >>
> >> rsvp****
> >>
> >> interface ..****
> >>
> >>   bandwidth …****
> >>
> >> ** **
> >>
> >> in order to be able to use non-zero banwdith reservations. That’s part of
> >> your basic MPLS-TE config, which I didn’t include in my config example..
> *
> >> ***
> >>
> >> By default, the bandwidth is zero on interfaces enabled for MPLS-TE (i.e.
> >> the ones enabled under “mpls traffic-eng”).. ****
> >>
> >> ** **
> >>
> >>            oli****
> >>
> >> ** **
> >>
> >> *From:* 许虎 [mailto:jstuxuhu0816 at gmail.com<mailto:jstuxuhu0816 at gmail.com>]
> >> *Sent:* 21 February 2012 10:03
> >> *To:* Oliver Boehmer (oboehmer)
> >> *Cc:* cisco-nsp at puck.nether.net<mailto:cisco-nsp at puck.nether.net>
> >>
> >> *Subject:* Re: [c-nsp] MPLS TE conver from IOS to IOS-XR****
> >>
> >>  ** **
> >>
> >> The MPLS TE signaling usually uses the RSVP, but in the global
> >> configuration i didn't see any RSVP configuration, why? Is the the
> default
> >> configuraion? ****
> >>
> >> ****
> >>
> >> Many thanks.****
> >>
> >> Hu Xu****
> >>
> >> 在 2012年2月20日 下午9:03，Oliver Boehmer (oboehmer)
> <oboehmer at cisco.com<mailto:oboehmer at cisco.com>>写道：****
> >>
> >> ok.. you can also leave out the “autoroute-announce” for the beginning,
> >> then the tunnel won’t take any traffic and you will be able to check if
> >> everything is set up correctly (i.e. the primary/mesh tunnels are being
> >> built and the backups are being installed), without any impact to the
> live
> >> traffic..****
> >>
> >> ****
> >>
> >>            oli****
> >>
> >> ****
> >>
> >> *From:* 许虎 [mailto:jstuxuhu0816 at gmail.com<mailto:jstuxuhu0816 at gmail.com>]
> >> *Sent:* 20 February 2012 14:00
> >> *To:* Oliver Boehmer (oboehmer)
> >> *Subject:* Re: [c-nsp] MPLS TE conver from IOS to IOS-XR****
> >>
> >> ****
> >>
> >> Thanks, oil, i will try in the live network tomorrow.****
> >>
> >> 在 2012年2月20日 下午6:16，Oliver Boehmer (oboehmer)
> <oboehmer at cisco.com<mailto:oboehmer at cisco.com>>写道：****
> >>
> >> Hi,****
> >>
> >>
> >>
> >>> Since now I can make sure the "Group" command in IOS-XR is the same to
> >> the
> >>> "Auto-Template" in IOS,  but my problem is that in the IOS
> >> "Auto-Template" I
> >>> can use the below command :
> >>>
> >>> interface Auto-Template1
> >>> mpls mtu 17916
> >>> tunnel mpls traffic-eng autoroute announce
> >>> tunnel mpls traffic-eng path-option 1 dynamic
> >>>
> >>> but in the Group, we just have the below command:
> >>>
> >>> XXXX(config-mpls-te)#auto-tunnel mesh
> >>> XXXX(config-te-auto-mesh)#group 1 ?
> >>>  attribute-set     Attribute-set name of type auto-mesh
> >>>  destination-list  Destination-list (prefix-list) name
> >>>  disable           Disable the mesh group
> >>>  <cr>
> >>>
> >>> So I am again wondering the group is not the same compared to the Auto-
> >>> Template.****
> >>
> >> you need to configure autoroute-announce and attribute-set, which you in
> >> turn reference in the group..  look at the "autoroute announce" in the
> >> config I sent.
> >> As far as I know, path-option is always dynamic for auto-tunnel mesh in
> >> XR, so no need to configure this.
> >>
> >>       oli****
> >>
> >> ****
> >>
> >> ** **
> >>
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