yeah yeah yeah ;-)
I agree that at the far-ends, one would need to bridge LAN to serial and
across the serial link for the configuration to make sense.
and no, I'm not taking the routing out of there (besides, I tore that down
on Sunday night)
mirthfully...
-e-
----- Original Message -----
From: "Chuck Larrieu"
To: "EA Louie" ;
Sent: Tuesday, September 18, 2001 9:48 PM
Subject: RE: Bridging [7:20078]
> hate to say it, but you are routing, not bridging. you have RIP turned on,
> and you have IP addresses for the classful 172.17.0.0 network on all
> interfaces. that's why the ping works.
>
> remove RIP and turn off routing ( no ip routing ) and see what happens.
>
> I am not denying that one can bridge across serial interfaces. but it does
> no good unless hosts on either end of the bridge group can connect. that
was
> the reason I made the comment I did.
>
> Chuck
>
> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
> EA Louie
> Sent: Sunday, September 16, 2001 10:51 PM
> To: [EMAIL PROTECTED]
> Subject: Re: Bridging [7:20078]
>
>
> It actually works fine for a spanning tree bridge with no CRB or IRB...
>
> lo0 172.17.3.1
> |
> R1
> | s0 172.17.1.1
> | s0 172.17.1.2
> R2
> | s1 172.17.1.3
> | s0 172.17.1.4
> R3
> |
> lo0 172.17.2.1
>
>
> ***R2 config***
> !
> interface Serial0
> bandwidth 1544
> ip address 172.17.1.2 255.255.255.0
> no ip mroute-cache
> no fair-queue
> clockrate 56000
> bridge-group 1
> !
> interface Serial1
> ip address 172.17.1.3 255.255.255.0
> clockrate 56000
> bridge-group 1
> !
> router rip
> network 172.17.0.0
> !
> bridge 1 protocol ieee
> !
>
> R2#sh span
>
> Bridge group 1 is executing the ieee compatible Spanning Tree protocol
> Bridge Identifier has priority 32768, address 0000.0c90.b7b8
> Configured hello time 2, max age 20, forward delay 15
> We are the root of the spanning tree
> Topology change flag not set, detected flag not set
> Number of topology changes 4 last change occurred 00:40:00 ago
> from Serial1
> Times: hold 1, topology change 35, notification 2
> hello 2, max age 20, forward delay 15
> Timers: hello 1, topology change 0, notification 0, aging 300
>
> Port 3 (Serial0) of Bridge group 1 is forwarding
> Port path cost 647, Port priority 128, Port Identifier 128.3.
> Designated root has priority 32768, address 0000.0c90.b7b8
> Designated bridge has priority 32768, address 0000.0c90.b7b8
> Designated port id is 128.3, designated path cost 0
> Timers: message age 0, forward delay 0, hold 0
> Number of transitions to forwarding state: 2
> BPDU: sent 2256, received 0
>
> Port 4 (Serial1) of Bridge group 1 is forwarding
> Port path cost 647, Port priority 128, Port Identifier 128.4.
> Designated root has priority 32768, address 0000.0c90.b7b8
> Designated bridge has priority 32768, address 0000.0c90.b7b8
> Designated port id is 128.4, designated path cost 0
> Timers: message age 0, forward delay 0, hold 0
> Number of transitions to forwarding state: 1
> BPDU: sent 1214, received 0
>
> R2#
>
> ***R1 config***
> interface Loopback0
> ip address 172.17.3.1 255.255.255.0
> no logging event subif-link-status
> !
> interface Serial0
> ip address 172.17.1.1 255.255.255.0
> no logging event subif-link-status
> !
> router rip
> network 172.17.0.0
>
> ***R3 config***
> interface Loopback0
> ip address 172.17.2.1 255.255.255.0
> !
> interface Serial0
> ip address 172.17.1.4 255.255.255.0
> !
> router rip
> network 172.17.0.0
> !
>
> R1#p 172.17.2.1
>
> Type escape sequence to abort.
> Sending 5, 100-byte ICMP Echos to 172.17.2.1, timeout is 2 seconds:
> !!!!!
> Success rate is 100 percent (5/5), round-trip min/avg/max = 64/66/68 ms
>
> R3#p
> Protocol [ip]:
> Target IP address: 172.17.3.1
> Repeat count [5]:
> Datagram size [100]:
> Timeout in seconds [2]:
> Extended commands [n]: y
> Source address or interface: lo 0
> Type of service [0]:
> Set DF bit in IP header? [no]:
> Validate reply data? [no]:
> Data pattern [0xABCD]:
> Loose, Strict, Record, Timestamp, Verbose[none]:
> Sweep range of sizes [n]:
> Type escape sequence to abort.
> Sending 5, 100-byte ICMP Echos to 172.17.3.1, timeout is 2 seconds:
> !!!!!
> Success rate is 100 percent (5/5), round-trip min/avg/max = 68/68/68 ms
> R3#
>
> ----- Original Message -----
> From: "Lupi, Guy"
> To:
> Sent: Sunday, September 16, 2001 7:47 PM
> Subject: RE: Bridging [7:20078]
>
>
> > What I was going to do was set up 192.168.1.1 255.255.255.252 on the
> serial
> > interface of the 2501 and 192.168.1.2 255.255.255.252 on the serial
> > interface of the 2503, and just see if I could ping and get OSPF to
work.
> > It isn't working, I have CRB enabled, set up bridge group 1, put both
> > interfaces on the 2511 into that bridge group, and told the router to
> bridge
> > IP for that bridge group using "bridge 1 bridge ip", which doesn't show
up
> > in the config for some reason. Here is a partial running config from
the
> > 2511, and a "show bridge group":
> >
> >
> > bridge crb
> > !
> > !
> > !
> > interface Loopback1
> > ip address 192.168.247.1 255.255.255.255
> > no ip mroute-cache
> > !
> > interface Loopback2
> > ip address 25.11.0.1 255.255.255.255
> > no ip mroute-cache
> > !
> > interface Ethernet0
> > ip address 198.207.193.112 255.255.255.0
> > no ip mroute-cache
> > !
> > interface Serial0
> > no ip address
> > ip directed-broadcast
> > no ip mroute-cache
> > clockrate 1300000
> > bridge-group 1
> > !
> > interface Serial1
> > no ip address
> > ip directed-broadcast
> > no ip mroute-cache
> > bridge-group 1
> > !
> > ip kerberos source-interface any
> > ip classless
> > ip route 0.0.0.0 0.0.0.0 198.207.193.254
> > no ip http server
> > !
> > !
> > !
> > !
> > !
> > bridge 1 protocol ieee
> >
__________________________________________________________________________
> >
> > 2511#sh bridge group
> >
> > Concurrent routing and bridging is enabled.
> >
> > Bridge Group 1 is running the IEEE compatible Spanning Tree protocol
> >
> > Port 3 (Serial0) of bridge group 1 is forwarding
> > Port 4 (Serial1) of bridge group 1 is forwarding
> >
> > -----Original Message-----
> > From: Chuck Larrieu
> > To: [EMAIL PROTECTED]
> > Sent: 9/15/2001 9:09 PM
> > Subject: RE: Bridging [7:20078]
> >
> > yes.
> >
> > how are you going to test that it's working?
> >
> > Chuck
> >
> > -----Original Message-----
> > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
> > Lupi, Guy
> > Sent: Saturday, September 15, 2001 5:49 PM
> > To: [EMAIL PROTECTED]
> > Subject: Bridging [7:20078]
> >
> >
> > Can you configure bridging using only serial interfaces, no ethernet
> > involved at all? I have a 2501 connected to a 2511, and a 2503
> > connected to
> > the same 2511, both via serial. I want to configure the 2 serial
> > interfaces
> > on the 2511 to bridge between them, is that possible? There is no
> > practical
> > reason for this, just setting it up in the lab and I am curious.
> > Thanks.
> _________________________________________________________
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