Nokia ESB26 User Manual page 173

14.
MSTI configuration Identifier
(Key, Revision, Name) 50
Bytes.
CIST Regional Root Identifier
CIST Internal Root Path Cost
CIST Remaining hops – 2
bytes instead of 1.
MSTI1
MSTID
Flags
MSTI Regional Root Identifier
MSTI Internal root path cost
MSTI Transmitting Bridge
Idnetifier
MSTI Port Identifier
MSTI Remaining hops
NOTE
If the Cisco BPDUs are parsed as specified in IEEE 802.1s standard, some offsets and shifts
may cause wrong values for the M-records and for the matching fields that are located after
the version 3 length - CIST Internal root path cost, CIST Bridge identifier, CIST remaining
hops.
Displaying MSTP Configuration
Table 14-9 lists the MSTP Display commands.
Table 14-9 MSTP Display Commands
C o m m a n d
show pending
show
show mstp configuration
show mstp
show mstp instance
MN700004 Rev 01
Multiple Spanning Tree Protocol (MSTP)
00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00
00 00 00 00 64 b1 f4 bb 1f 3c
6d 4d a3 00 94 c1 11 b7 c0 92
60 00 00 07 eb d5 a2 00
00 00 00 00
14 00
01
69
60 01 00 07 eb d5 a2 00
00 00 00 00
60 01 00 07 eb d5 a2 00
80 01
14 00
D e s c r i p t i o n
Displays the temporary configuration.
Displays the MSTP configuration.
Displays the MSTP configuration in the current region.
Displays the whole MSTP configuration.
Displays the configured instances.
162
The first byte of
configuration is called selector,
and is omitted (or over-ridden
by the version 3 length field)
The fields order is flipped.
Extra byte - Cisco BPDU with no
MSTIs ends here and contains
the extra byte.
The whole M-Record structure is
different. In the 802.1s there is
no MSTID field. The priority of
the sending bridge and the port
priority are sent without bridge
ID and port ID of the sending
bridge.
the