RARE user and assistance email list

[mc36 <>]

first of all, forget about the config snippet, shit as hell :)

```
  r1                 r6
    > r3---r4---r5 <
  r2                 r7

r1 and r2 are cpes in vpnv4/vpnv6 vrfs of r3,
r3-r4 will have two rsvp-te tunels and vpnv4/vpnv6 ibgp,
r4-r5 will have a single bgp-ct
and r6 and r7 are cpes in vpnv4/vpnv6 vrfs of v5
```

> Why rsvp-te tunnel end at r4?
so r3-r4 will be in isis, vpnv4 ibgp, and have 2 rsvp-te for the 2 colors,
i'll place the tunnel-te to the two colored vrfs and mutual-redistribute
this is the cisco way of doing rsvp-te... we have auto-tunnel in 
cisco&freerouter,
but that knob is not (yet) colorful in freerouter... imho this is what junos 
does by default?

> Are there two more rsvp-te tunnels from r4-r5?
>
so 2 from r4->r5 and 2 from r5->r4

> And is there a bgp-ct session between r3-r4 also? With r4 doing 
nexthop-self?
>
no, bgp-ct here only over ebgp in between r4-r5
r3-r4 will do vpnv4/vpnv6 exclusively, and redistribute heavily.... :)

br,
cs





On 2/15/23 08:02, Kaliraj Vairavakkalai wrote:
> > r3-r4 will have two rsvp-te tunels and vpnv4/vpnv6 ibgp,
> > r4-r5 will have a single bgp-ct
>
> Why rsvp-te tunnel end at r4? Are there two more rsvp-te tunnels from r4-r5?
>
> And is there a bgp-ct session between r3-r4 also? With r4 doing nexthop-self?
>
> Thanks
>
> Kaliraj
>
> *From: *mc36 <>
> *Date: *Tuesday, February 14, 2023 at 10:49 PM
> *To: *Kaliraj Vairavakkalai <>,  <>, Krzysztof Szarkowicz <>, Simon Leinen <>, 
> Ivana Golub <>, Fr  d  ric LOUI <>
> *Cc: *Natrajan Venkataraman <>, Reshma Das <>, 
>  <>
> *Subject: *Re: [freertr] [RARE-users] EANTC - BGP CT - Juniper-FreeRTR
>
> [External Email. Be cautious of content]
>
>
> hi,
> let's have a different topology to answer your question:
>
>     r1                                 r6
>         > r3---r4---r5 <
>     r2                                 r7
>
> r1 and r2 are cpes in vpnv4/vpnv6 vrfs of r3,
> r3-r4 will have two rsvp-te tunels and vpnv4/vpnv6 ibgp,
> r4-r5 will have a single bgp-ct
> and r6 and r7 are cpes in vpnv4/vpnv6 vrfs of v5
>
> so this doable, but i don't have a complete test case for it, just in pieces,
> but i can quickly write you this topology as a test if that helps?
> br,
> cs
>
>
>
> On 2/15/23 07:42, Kaliraj Vairavakkalai wrote:
> > > rare/freertr used the neighbor 1.1.1.1 address-family knob whta controls, but 
> > > the safis are similarly exclusive, only one of them is accepted:
> >
> > Yea, we noticed that during last hackathon. that     s ok, we can work with 
> > that.
> >
> > But my main question was this:
> >
> > Lets say there are two RSVP-TE-Tunnels (red, blue) between r1 to r2.
> >
> > >     red                                 red---r5
> > > r0-->r1====r2<--r4
> > > blue                                 blue
> >
> > > so in the above topology we can separate the two colors while using a single 
> > > link in between r1 and r2 with 1 bgp-ct session...
> >
> > Can red bgp-ct routes put traffic on red-Tunnel. And blue-routes put traffic 
> > on blue-Tunnel?
> >
> > i.e. based on the mapping-community on the bgp-route, resolve bgp nexthop r2 
> > over a red/blue-Tunnel.
> >
> > I thought that is the       Colorful resolution       functionality that 
> > arrived in spring. Sorry if I misunderstood. :)
> >
> > Thanks
> >
> > Kaliraj
> >
> > *From: *mc36 <>
> > *Date: *Tuesday, February 14, 2023 at 10:11 PM
> > *To: *Kaliraj Vairavakkalai <>, Krzysztof Szarkowicz 
> > <>, Simon Leinen <>, Ivana Golub
> > <>, Fr   d   ric LOUI <>
> > *Cc: *Natrajan Venkataraman <>, Reshma Das <>, 
> >  <>
> > *Subject: *Re: [freertr] [RARE-users] EANTC - BGP CT - Juniper-FreeRTR
> >
> > [External Email. Be cautious of content]
> >
> >
> > > (xr lifted this recently, whereas it's still true for xe and rare/freerouter)
> >
> >
> > c8000v-1(config)#router bgp 1
> > c8000v-1(config-router)#address-family ipv4 unicast
> > c8000v-1(config-router-af)#neighbor 1.1.1.1 send-label ?
> >             explicit-null     Advertise Explicit Null label in place of 
> > Implicit Null
> >             <cr>                                         <cr>
> >
> > c80000v-1(config-router-af)#neighbor 1.1.1.1 send-label
> >
> > so this knob is what "converts" this peering from ipv4 unicast to ipv4 
> > labeled unicast, and obviously it's set or not... :)
> >
> > rare/freertr used the neighbor 1.1.1.1 address-family knob whta controls, but 
> > the safis are similarly exclusive, only one of them is accepted:
> >
> > sid#configure
> > sid(cfg)#router bgp4 123 vrf v3
> > sid(cfg-rtr)#neighbor 1.1.1.1 remote-as 321
> > sid(cfg-rtr)#neighbor 1.1.1.1 address-family unicast labeled
> > sid(cfg-rtr)#show running-config this
> > router bgp4 123 vrf v3
> >         neighbor 1.1.1.1 remote-as 321
> >         neighbor 1.1.1.1 address-family labeled
> >         exit
> > !
> >
> > sid(cfg-rtr)#
> >
> >
> > Juniper Business Use Only
>
>
> Juniper Business Use Only