From: Mas (tealp729@xxxxxxxx)
Date: Sun Apr 22 2001 - 01:59:06 GMT-3
Dave,
You should be able to run your routers back-to-back via the T1 WICs.
You'll need to build or buy an RJ-48C (RJ-45 plugs are compatible)
crossover cable--here's the pinout:
1-4
2-5
4-1
5-2
Note: A rolled console cable will *not* work with back-to-back T1 WICs,
but might work with back-to-back 4-wire 56/64K WICs.
Using 'service-module' interface commands, set one T1 WIC to clock
source internal, and the other T1 WIC to clock source line. The
linecode, framing, data-coding, and timeslots must be set the same on
both WICs.
If 'show controllers t1' shows errors, you may want to try the
'service-module t1 lbo' command to increase the Line Build-Out, or LBO
(typical LBO is -15dB)--in other words, decrease the gain on the
transmitters or make the cable seem longer.
Have fun!
Regards,
Mas Kato
P.S. I don't mind, but the next time you want to start a new topic, you
may want to send it directly to the CCIELAB list first. I'm not sure,
but I think the threading kinda gets screwed up when a new topic isn't
started right...
-----Original Message-----
From: David Siwula [mailto:DSiwula@dctc.com]
Sent: Saturday, April 21, 2001 8:34 PM
To: Mas; Nodir Nazarov; ccielab@groupstudy.com
Subject: T1 csu/dsu
I have a 2621 and a 2610 each with a T1 csu/dsu card and an ethernet
interface. I would like to run frame-relay or possibly some other
things. How would I go about this? I would like to use the ethernet
interfaces to generate traffic. So I was hoping I could do it with the
wic card? This might be stupid but I seemed to have went blank on this
one. I faintly remember doing it before.
Thanks, Dave
-----Original Message-----
From: Mas [mailto:tealp729@home.com]
Sent: Saturday, April 21, 2001 7:21 PM
To: 'Nodir Nazarov'; ccielab@groupstudy.com
Subject: RE: SR/TLB - again..
Nodir,
All you seem to be missing now is the following global command on R6:
bridge 6 bitswap-layer3-addresses
This command first appeared in 11.3(5)T and enables transparent bridging
or source-route/translational bridging or IP ARPs between canonical and
non-canonical media types.
The critical commands necessary to be able to ping across the SR/TLB in
your scenario are:
multiring all (multiring ip would suffice) on R4/to0,
source-bridge spanning on R6/to0 and
bridge 6 bitswap-layer3-addresses on R6/global
Regards,
Mas Kato
P.S. Sorry this took so long--the 'bridge bitswap-layer3-addresses'
command appears in the archives, but I've been out-of-town and wanted to
verify its effect for myself. I also wanted to verify the minimum
commands that were needed...
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
Nodir Nazarov
Sent: Tuesday, April 17, 2001 8:41 PM
To: ccielab@groupstudy.com
Subject: SR/TLB - again..
Hello, everyone,
I am missing something with SR/TLB concept. I hope somebody can help.
I have R3--R6--R4, where R3 has eth interface and R4 - token ring. R6
(2513) is supposed to do SR/TLB.
R3:
interface Ethernet0/0
mac-address 0001.0001.0001
ip address 192.168.10.3 255.255.255.0
no ip directed-broadcast
!
R4:
!
interface TokenRing0
mac-address 0003.0003.0003
ip address 192.168.10.4 255.255.255.0
no ip directed-broadcast
ring-speed 16
multiring all
end
R6:
!
source-bridge ring-group 100
source-bridge transparent 100 200 2 6
!
interface Ethernet0
mac-address 0002.0002.0002
bridge-group 6
!
bridge 6 protocol ieee
!
interface TokenRing0
mac-address 0004.0004.0004
ring-speed 16
source-bridge 5 2 100
source-bridge spanning
!
R4 and R6's token ring interfaces are connected to TRCRF 0x5. TRBRF for
that is 0x1. My pings are unsuccessful. On R3 I can see R4's mac address
though:
R3#sh arp
Protocol Address Age (min) Hardware Addr Type Interface
Internet 192.168.10.3 - 0001.0001.0001 ARPA Ethernet0/0
Internet 192.168.10.4 7 0003.0003.0003 ARPA Ethernet0/0
(it's funny I thought I would see it in non-canonical format)
On R4 I don't see any sign of R3.
R6 shows that bridge is receiving packets.
R6#sh bri
Total of 300 station blocks, 298 free
Codes: P - permanent, S - self
Bridge Group 6:
Address Action Interface Age RX count TX count
0001.0001.0001 forward Ethernet0 0 4 0
00c0.00c0.00c0 forward RingGroup100 0 4 0
When I ping from R3 to R4 for each ping packet I get
00:49:55: SRB: To0: sent explorer at interrupt, [C810.0C82.0642.0050]
(I read: Ring200-Bridge2-Ring100-Bridge2-Ring5).
Is this how it's supposed to be ? Why do I have 2 bridges with same
number in RIF ?
Sorry for long message but I thought somebody with TR experice could
take
a look. There is no physical problems. I have reloaded routers billion
times. Has anyone configured SR/TLB ?
What am I missing ? Thank you for your time !!
Nodir
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