From: Earl Aboytes (earl@xxxxxxxxxxxx)
Date: Wed May 24 2000 - 00:46:01 GMT-3
This is the way that I understand it. There are two types of broadcasts in
token ring switching/bridging. You have Single Route Explorer packets (SRE)
and All Routes Explorer packets (ARE). Since you have these two types you
need two types of vlans. You have a TrBRF and a TrCRF. An SRE will only
traverse the TrCRF and an ARE will traverse all TrCRF's in a single TrBRF.
To answer your question of
What forms a TokenRing VLAN?
1) A TrCRF with many ports attached to it.
2) One or more TrCRFs with a parent TrBRF
Well....Both :). Really you need to be concerned with the TrCRF. That is
what is going to separate the rings from each other. It's what I would
equate an ethernet vlan to.
Here is a dump of my config. I am not sure that it will help you. You
really need to know how to navigate the menues.
[0100] Switch/Stack Info
============================================================================
==
[0101] Interface Description: Cisco Catalyst 3920 HW Rev 002; SW Rev 3.0(5)
[0102] MAC Address: 000577:1F7C80
[0103] QMAC Ver(Maj:Min:ECO): 1.11.0
[0104] Time of day: Tue. May 23, 2000 20:36:20
[0105] DRAM Installed: 8 MB
[0106] FLASH Memory Installed: 2 MB
[0107] System ID: 1.3.6.1.4.1.9.5.37
[0108] Number of boxes: 1
[0109] Local box number: 1
[010a] Remote box number(s): None
[010b] Stack State: Not Operational
[010c] Stack Time-out (sec.): 16
[010d] Stack Connection: None, Not Connected
[010e] System Name: nis-toga-trswitch
[010f] System Location: TogaLab
[0110] System Contact: Earl Aboytes 805-381-8817
[01ff]
[0200] VLAN Overview
============================================================================
==
VLAN Name Status SpanTree Brdg/Ring Brdg Mode
----------------------------------------------------------------------------
-- 200 Ring 200 active Disabled 0x0F 201 Ring201 active Disabled auto SRB 202 Ring202 active Disabled auto SRB 500 ring500 active Disabled 0x0F 501 ring501 active Disabled auto SRB 1003 trcrf-default active Disabled 0x100 SRB 1005 trbrf-default active Disabled 0x0F [02ff][0300] IP Configuration ============================================================================ == VLAN Name IP Addr Subnet Mask Gateway IP State ---------------------------------------------------------------------------- -- 200 Ring 200 0.0.0.0 0.0.0.0 0.0.0.0 Disabled 500 ring500 0.0.0.0 0.0.0.0 0.0.0.0 Disabled 1005 trbrf-default 0.0.0.0 0.0.0.0 0.0.0.0 Enabled [03ff]
[0400] SNMP Configuration ============================================================================ == [0401] Send Authentication Traps: Yes [0402] Enable RMON Statistics: No
[0403] Community Strings Index Community Name Mode ---------------------------------------------------------------------------- -- 1 public Read 2 private Read/Write
[0404] Trap Receivers IP Address Community Name VLAN ---------------------------------------------------------------------------- -- [04ff]
[0500] Spanning Tree ============================================================================ ==
Displaying Spanning Tree Infomation for Box 1 ============================================================================ == BRF: trbrf-default ---------------------------------------------------------------------------- -- No Current Spanning Tree Information.
BRF: Ring 200 ---------------------------------------------------------------------------- -- No Current Spanning Tree Information.
BRF: ring500 ---------------------------------------------------------------------------- -- No Current Spanning Tree Information.
CRF: trcrf-default ---------------------------------------------------------------------------- -- No Current Spanning Tree Information.
CRF: Ring202 ---------------------------------------------------------------------------- -- No Current Spanning Tree Information.
CRF: Ring201 ---------------------------------------------------------------------------- -- No Current Spanning Tree Information.
CRF: ring501 ---------------------------------------------------------------------------- -- No Current Spanning Tree Information.
[05ff]
[0600] Port Status for Box 1 ============================================================================ == Port TrCRF TrBRF Enabled Ins Spd Oper Mode Fwd Mode ---------------------------------------------------------------------------- -- 1 Ring201 Ring 200 Yes Yes 16 HDX port Cut-Thru 2 Ring202 Ring 200 Yes Yes 16 HDX port Cut-Thru 3 trcrf-default trbrf-default Yes No 4 trcrf-default trbrf-default Yes No 5 ring501 ring500 Yes No 6 Ring201 Ring 200 Yes No 7 trcrf-default trbrf-default Yes No 8 trcrf-default trbrf-default Yes No 9 trcrf-default trbrf-default Yes No 10 trcrf-default trbrf-default Yes No 11 trcrf-default trbrf-default Yes No 12 trcrf-default trbrf-default Yes No 13 trcrf-default trbrf-default Yes No 14 trcrf-default trbrf-default Yes No 15 trcrf-default trbrf-default Yes No 16 trcrf-default trbrf-default Yes No 17 trcrf-default trbrf-default Yes No 18 trcrf-default trbrf-default Yes No 19 trcrf-default trbrf-default Yes No 20 trcrf-default trbrf-default Yes No 21 trcrf-default trbrf-default Yes No 22 trcrf-default trbrf-default Yes No 23 trcrf-default trbrf-default Yes No 24 trcrf-default trbrf-default Yes No
[0700] CDP Configuration Box 1 ============================================================================ == Port Ena/Dis Message Interval Default time-to-live value ---------------------------------------------------------------------------- -- 1 Enabled 60 180 2 Enabled 60 180 3 Enabled 60 180 4 Enabled 60 180 5 Enabled 60 180 6 Enabled 60 180 7 Enabled 60 180 8 Enabled 60 180 9 Enabled 60 180 10 Enabled 60 180 11 Enabled 60 180 12 Enabled 60 180 13 Enabled 60 180 14 Enabled 60 180 15 Enabled 60 180 16 Enabled 60 180 17 Enabled 60 180 18 Enabled 60 180 19 Enabled 60 180 20 Enabled 60 180 21 Enabled 60 180 22 Enabled 60 180 23 Enabled 60 180 24 Enabled 60 180 [07ff]
[0800] Module Configuration for Box 1 ============================================================================ == Module Status Model ID HW Rev FW Rev Ports Up Time ---------------------------------------------------------------------------- -- 1 up CAT3920 31 2.6.2 1.11.0 24 651:32:22 2 up WS-C3900-STACK 42 0.B 1 651:32:22 [08ff]
[0900] Log for Box 1 ============================================================================ == Log Type Message Content ---------------------------------------------------------------------------- -- 2 I Wed. April 26, 2000 17:03:59 3 I Wed. April 26, 2000 17:03:59 4 I Wed. April 26, 2000 17:04:03- System entering stand-alone mode 5 I Wed. April 26, 2000 17:04:03Catalyst initiating bootp requests on one or more VLANs
[09ff]
[0a00] Diagnostic Test Results for Box 1 ============================================================================ ==
CPU Multicast Loopback Passed CPU Unicast Loopback Passed CPU Registers Passed CPU Program Memory Passed CPU Network Memory Passed Real-Time Clock Passed Serial Port Passed Linked Port Loopback Passed Port Loopback Passed Port Registers Passed Port Memory Passed Port Broadcast Passed
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Earl Aboytes Senior Technical Conultant GTE Managed Solutions 805-381-8817 earl.aboytes@telops.gte.com ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-----Original Message----- From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of Muthu Mohanasundaram Sent: Tuesday, May 23, 2000 7:20 PM To: ccielab@groupstudy.com Subject: TokenRing Switching Configs.
Hi,
I am studying Catalyst 3900 TokenRing switches.
What forms a TokenRing VLAN?
1) A TrCRF with many ports attached to it. 2) One or more TrCRFs with a parent TrBRF.
I am confused about which one will be a Logical IP subnet. The config giude of 3900 does not explain this.
Can anyone give me some sample configs. I could't find any examples on the DOC CD.
Any help would be appreciated.
Thanks,
Mohan.
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