RE: SR/TLB

From: Jack Heney (jheneyccie@xxxxxxxxxxx)
Date: Wed Nov 01 2000 - 18:05:17 GMT-3


   
Oops....Yes it was a typo...RtrA has "bridge-group 1" and "bridge 1 protocol
ieee".

I noticed something else interesting....When I try to ping RtrA from HostA,
I don't get the duplicate ring error message that I get when I ping from
RtrA to HostA.

Any ideas?

>From: "Rogell, Dennis" <Dennis_Rogell@milgo.com>
>To: 'Jack Heney' <jheneyccie@hotmail.com>
>Subject: RE: SR/TLB
>Date: Wed, 1 Nov 2000 16:04:18 -0500
>
>Jack
>On rtra I did not see a bridge-group statement is that a typo
>
>Dennis Rogell
>Email : dennis_rogell@milgocom
>Phone: (954) 426-2581
>
> > -----Original Message-----
> > From: Jack Heney [SMTP:jheneyccie@hotmail.com]
> > Sent: Wednesday, November 01, 2000 12:35
> > To: ccielab@groupstudy.com
> > Subject: SR/TLB
> >
> > I'm having trouble getting SR/TLB to work...Here's my config:
> >
> > RtrA--------------RtrB---------------HostA
> > ether token
> >
> > RtrA:
> > interface fastethernet 0/0
> > ip address 10.1.1.2 255.255.255.0
> >
> >
> > RtrB:
> > no ip routing
> > source-bridge ring-group 3
> > source-bridge transparent 3 4 11 1
> > interface ethernet 0/0
> > bridge-group 1
> > interface tokenring 0/0
> > source-bridge spanning 1
> > source-bridge 2 12 3
> > ring-speed 16
> > bridge 1 protocol ieee
> >
> > HostA has an IP address of 10.1.1.1 255.255.255.0
> >
> > My understanding is that the above configuration should cause traffic on
> > the
> > Token RIng network to be bridged to ring 3 (virtual-ring), which then
> > bridges it to pseudo-ring 4 (actually ethernet bridge-group 1).
>However,
> > pings do not seem to be able to cross the bridge.
> >
> > When I "debug source bridge" on RtrB and try to ping HostA from RtrA,
>this
> >
> > is the output (I also included the output of "show source-bridge"):
> >
> > 00:03:06: VRING: forward explorer, bn 12 trn 2, [C810.004B.003C.0020]
> > 00:03:06: VRING: forward pak (srn 3 bn 11 trn 2), src: 8010.4b95.56ce
>dst:
> >
> > 0030.
> > 8004.49e0, [0890.004B.003C.0020]
> > 00:03:06: SRB0: explorer enqueued (srn 2 bn 12 trn 3)
> > 00:03:06: SRB0: duplicate ring violation, s: 800c.0120.9207 d:
> > ffff.ffff.ffff ri
> > f: C810.004B.003C.0020
> > 00:03:08: VRING: forward explorer, bn 12 trn 2, [C810.004B.003C.0020]
> > 00:03:08: VRING: forward pak (srn 3 bn 11 trn 2), src: 8010.4b95.56ce
>dst:
> >
> > 0030.
> > 8004.49e0, [0890.004B.003C.0020]
> > 00:03:08: SRB0: explorer enqueued (srn 2 bn 12 trn 3)
> > 00:03:08: SRB0: duplicate ring violation, s: 800c.0120.9207 d:
> > ffff.ffff.ffff ri
> > f: C810.004B.003C.0020
> > 00:03:10: VRING: forward explorer, bn 12 trn 2, [C810.004B.003C.0020]
> > 00:03:10: VRING: forward pak (srn 3 bn 11 trn 2), src: 8010.4b95.56ce
>dst:
> >
> > 0030.
> > 8004.49e0, [0890.004B.003C.0020]
> > 00:03:10: SRB0: explorer enqueued (srn 2 bn 12 trn 3)
> > 00:03:10: SRB0: duplicate ring violation, s: 800c.0120.9207 d:
> > ffff.ffff.ffff ri
> > f: C810.004B.003C.0020
> > 00:03:12: VRING: forward explorer, bn 12 trn 2, [C810.004B.003C.0020]
> > 00:03:12: VRING: forward pak (srn 3 bn 11 trn 2), src: 8010.4b95.56ce
>dst:
> >
> > 0030.
> > 8004.49e0, [0890.004B.003C.0020]
> > 00:03:12: SRB0: explorer enqueued (srn 2 bn 12 trn 3)
> > 00:03:12: SRB0: duplicate ring violation, s: 800c.0120.9207 d:
> > ffff.ffff.ffff ri
> > f: C810.004B.003C.0020
> > 00:03:14: VRING: forward explorer, bn 12 trn 2, [C810.004B.003C.0020]
> > 00:03:14: VRING: forward pak (srn 3 bn 11 trn 2), src: 8010.4b95.56ce
>dst:
> >
> > 0030.
> > 8004.49e0, [0890.004B.003C.0020]
> > 00:03:14: SRB0: explorer enqueued (srn 2 bn 12 trn 3)
> > 00:03:14: SRB0: duplicate ring violation, s: 800c.0120.9207 d:
> > ffff.ffff.ffff ri
> > f: C810.004B.003C.0020
> >
> > RtrB#sh source-bridge
> >
> > Local Interfaces: receive transmit
> > srn bn trn r p s n max hops cnt cnt
> > drops
> > To0/0 2 12 3 * f 7 7 7 5 7
>5
> >
> > Global RSRB Parameters:
> > TCP Queue Length maximum: 100
> >
> > Ring Group 3:
> > No TCP peername set, TCP transport disabled
> > Maximum output TCP queue length, per peer: 100
> > Rings:
> > bn: 12 rn: 2 local ma: 400b.5d1b.f681 TokenRing0/0 fwd: 0
> > bn: 11 rn: 4 locvrt ma: 400b.5d1b.f601 Bridge-group 1 fwd: 5
> >
> > Explorers: ------- input ------- ------- output -------
> > spanning all-rings total spanning all-rings total
> > To0/0 0 0 0 7 0 7
> >
> > Explorer fastswitching enabled
> > Local switched: 1 flushed 0 max Bps 38400
> >
> > rings inputs bursts throttles output drops
> > To0/0 0 0 0 0
> >
> > It looks like the RtrB recognizes that Ring 3 (the virtual-ring) is
> > attached
> > to the actual token ring (2) via bridge 12 and attached to the
>pseudo-ring
> >
> > (4) via bridge 11, which is what I anticipated. It also seems to be
> > forwarding the pings from RtrA to ring 3, but not from ring 3 to ring 2:
> > bn: 12 rn: 2 local ma: 400b.5d1b.f681 TokenRing0/0 fwd: 0
> > bn: 11 rn: 4 locvrt ma: 400b.5d1b.f601 Bridge-group 1 fwd: 5
> >
> > I can't figure out what the "duplicate ring violation" is referring to,
> > because I made sure that I used different ring numbers for the actual
> > token
> > ring, the pseudo-ring, and the virtual-ring, but I'm guessing this is
> > somehow related to my lack of connectivity.
> > Can anyone shed some light on this situation for me?
> >
> > Thanks,
> > Jack
> >
> >



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