| Title: | FDDI - The Next Generation |
| Moderator: | NETCAD::STEFANI |
| Created: | Thu Apr 27 1989 |
| Last Modified: | Thu Jun 05 1997 |
| Last Successful Update: | Fri Jun 06 1997 |
| Number of topics: | 2259 |
| Total number of notes: | 8590 |
I've found the following multicast address in a DECbridge 500's forwarding database via DECelms' "Show known multicast address": 01-80-c2-00-00-00 keep 01-80-c2-00-00-01 filter 01-80-c2-00-00-02 filter 01-80-c2-00-00-03 filter 01-80-c2-00-00-04 filter 01-80-c2-00-00-05 filter 01-80-c2-00-00-06 filter 01-80-c2-00-00-07 filter 01-80-c2-00-00-08 filter 01-80-c2-00-00-09 filter 01-80-c2-00-00-0a filter 01-80-c2-00-00-0b filter 01-80-c2-00-00-0c filter 01-80-c2-00-00-0d filter 01-80-c2-00-00-0e filter 01-80-c2-00-00-0f filter 01-80-c2-00-00-11 forward These addresses came up automatically after the bridge was initialized with defaults. Can someone help explain their meaning? Thanks Lillian - HK EIS
| T.R | Title | User | Personal Name | Date | Lines |
|---|---|---|---|---|---|
| 99.1 | WIKKIT::WARWICK | Trevor Warwick | Mon Aug 06 1990 10:59 | 23 | |
01-80-c2-00-00-00 keep - ieee 802.1d spanning tree group addr.
01-80-c2-00-00-01 filter - ieee 802.1d reserved for future
01-80-c2-00-00-02 filter - ieee 802.1d reserved for future
01-80-c2-00-00-03 filter - ieee 802.1d reserved for future
01-80-c2-00-00-04 filter - ieee 802.1d reserved for future
01-80-c2-00-00-05 filter - ieee 802.1d reserved for future
01-80-c2-00-00-06 filter - ieee 802.1d reserved for future
01-80-c2-00-00-07 filter - ieee 802.1d reserved for future
01-80-c2-00-00-08 filter - ieee 802.1d reserved for future
01-80-c2-00-00-09 filter - ieee 802.1d reserved for future
01-80-c2-00-00-0a filter - ieee 802.1d reserved for future
01-80-c2-00-00-0b filter - ieee 802.1d reserved for future
01-80-c2-00-00-0c filter - ieee 802.1d reserved for future
01-80-c2-00-00-0d filter - ieee 802.1d reserved for future
01-80-c2-00-00-0e filter - ieee 802.1d reserved for future
01-80-c2-00-00-0f filter - ieee 802.1d reserved for future
01-80-c2-00-00-11 forward - ????
REF: ???? are you sure this wasn't 01-80-c2-00-00-10, which is the
802.1d All LANs Bridge Management Group Address.
Trevor
| |||||
| 99.2 | KONING::KONING | NI1D @FN42eq | Tue Aug 07 1990 15:35 | 9 | |
The first one is the 802.1d spanning tree protocol multicast address. The next 15 are set aside in the 802.1d standard as "must always be filtered" addresses. The -11 address relates to the 802.1e load protocol. Are you SURE that that one came up by default? It makes no sense for the bridge to special-case that address. paul | |||||
| 99.3 | "-11" did came up by default | HGOVC::LILLIANTANG | Fri Aug 31 1990 05:01 | 3 | |
The address 01-80-c2-00-00-11 did came up by default, NOT -10.
regs, Lillian
| |||||