[Rstplib-users] rstplib: ring not leading to spanning tree

[Tom D. <tom...@gm...>]

Hello Alex,

Thanks you for the RSTP lib implementation!

I am currently using it and I have an issue:
I start the mngr application and 8 bridge applications.
I connect the bridges in a ring (using the mngr bridge command).
The end-result is that all connected ports go in forwarding state.
Shouldn't the result be a tree?

I use rstplib.1.1.02.tar.gz, you can find the output below.

I'd appreciate any help you can offer.
Thanks in advance.
Kind regards,

Tom



mngr output:
17:34:46 Mngr > ring
17:34:47 Mngr > show
 1. Bridge B4286 has 4 ports:
port p01 connected to B4112 port p02
port p02 connected to B4285 port p01
 2. Bridge B4285 has 4 ports:
port p01 connected to B4286 port p02
port p02 connected to B4284 port p01
 3. Bridge B4284 has 4 ports:
port p01 connected to B4285 port p02
port p02 connected to B4283 port p01
 4. Bridge B4283 has 4 ports:
port p01 connected to B4284 port p02
port p02 connected to B4282 port p01
 5. Bridge B4282 has 4 ports:
port p01 connected to B4283 port p02
port p02 connected to B4281 port p01
 6. Bridge B4281 has 4 ports:
port p01 connected to B4282 port p02
port p02 connected to B4280 port p01
 7. Bridge B4280 has 4 ports:
port p01 connected to B4281 port p02
port p02 connected to B4113 port p01
 8. Bridge B4113 has 4 ports:
port p01 connected to B4280 port p02
port p02 connected to B4112 port p01
 9. Bridge B4112 has 4 ports:
port p01 connected to B4113 port p02
port p02 connected to B4286 port p01


bridges output:
17:37:59 B4113 > show port
 BridgeId: 8000-001110000001  RootId: 8000-001110000001
     p01 8001 Fwd  8000-001110000001 8000-001110000001 8001 D
 E   p02 8002 Fwd  8000-001110000001 8000-001110000001 8002 D
 E   p03 8003 Dis  0000-000000000000 0000-000000000000 8003
 E   p04 8004 Dis  0000-000000000000 0000-000000000000 8004

17:37:39 B4280 > show port
 BridgeId: 8000-00b810000001  RootId: 8000-001110000001
     p01 8001 Fwd  8000-001110000001 8000-00b810000001 8001 D
     p02 8002 Fwd  8000-001110000001 8000-001110000001 8001 R
 E   p03 8003 Dis  0000-000000000000 0000-000000000000 8003
 E   p04 8004 Dis  0000-000000000000 0000-000000000000 8004

17:37:42 B4281 > show port
 BridgeId: 8000-00b910000001  RootId: 8000-001110000001
     p01 8001 Fwd  8000-001110000001 8000-00b910000001 8001 D
     p02 8002 Fwd  8000-001110000001 8000-00b810000001 8001 R
 E   p03 8003 Dis  0000-000000000000 0000-000000000000 8003
 E   p04 8004 Dis  0000-000000000000 0000-000000000000 8004

17:37:54 B4283 > show port
 BridgeId: 8000-00bb10000001  RootId: 8000-001110000001
     p01 8001 Fwd  8000-001110000001 8000-00bb10000001 8001 D
     p02 8002 Fwd  8000-001110000001 8000-00ba10000001 8001 R
 E   p03 8003 Dis  0000-000000000000 0000-000000000000 8003
 E   p04 8004 Dis  0000-000000000000 0000-000000000000 8004

17:37:52 B4284 > show port
 BridgeId: 8000-00bc10000001  RootId: 8000-001110000001
     p01 8001 Fwd  8000-001110000001 8000-00bc10000001 8001 D
     p02 8002 Fwd  8000-001110000001 8000-00bb10000001 8001 R
 E   p03 8003 Dis  0000-000000000000 0000-000000000000 8003
 E   p04 8004 Dis  0000-000000000000 0000-000000000000 8004

17:37:44 B4282 > show port
 BridgeId: 8000-00ba10000001  RootId: 8000-001110000001
     p01 8001 Fwd  8000-001110000001 8000-00ba10000001 8001 D
     p02 8002 Fwd  8000-001110000001 8000-00b910000001 8001 R
 E   p03 8003 Dis  0000-000000000000 0000-000000000000 8003
 E   p04 8004 Dis  0000-000000000000 0000-000000000000 8004

17:37:46 B4286 > show port
 BridgeId: 8000-00be10000001  RootId: 8000-001110000001
 E   p01 8001 Fwd  8000-001110000001 8000-00be10000001 8001 D
     p02 8002 Fwd  8000-001110000001 8000-00bd10000001 8001 R
 E   p03 8003 Dis  0000-000000000000 0000-000000000000 8003
 E   p04 8004 Dis  0000-000000000000 0000-000000000000 8004

17:37:49 B4285 > show port
 BridgeId: 8000-00bd10000001  RootId: 8000-001110000001
     p01 8001 Fwd  8000-001110000001 8000-00bd10000001 8001 D
     p02 8002 Fwd  8000-001110000001 8000-00bc10000001 8001 R
 E   p03 8003 Dis  0000-000000000000 0000-000000000000 8003
 E   p04 8004 Dis  0000-000000000000 0000-000000000000 8004