Chapter 10: Cabletron MIB
10-34
ATX MIB Reference Guide
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entry-statistics = 24, if set then this is a dynamically learned customer
address, which exists on one of the units ports; however, the address can not
be used for packet forwarding decision making (e.g., the address was learned
as part of a packet’s source routing information, but Spanning Tree learning
was not enabled for the port).
•
bit 31 is reserved
Any combination of the restriction bits (bits 23-21) may be set for any type of
entry, except entry-other or entry-mesh:
•
entry-no-source = 23, if set then do not forward any packets from this source
address
•
entry-no-multi = 22, if set then do not forward any multicast packets from this
source address
•
Bit 21 is reserved
•
Bits 20-18 are reserved
Exactly one of the special entry bits (bits 17-10) must be set for entry-other
entries, and none of the bits may be set for other than entry-other entries:
•
entry-all-lmas = 17, if set then this is an all LMAs (Local Management Agent)
address, i.e., packets are sent to the LMA and forwarded throughout the
bridged network, only if the receiving port is in the proper state. The IEEE
Spanning Tree All LANs Bridge Management Group Address should be the
only instance of this entry.
•
entry-any-lma = 16, if set then this is an address for packets to be sent to the
LMA, regardless of the receiving port’s state. This is reserved for future
enhancements.
•
entry-lma = 15, reserved for future enhancements.
•
entry-port = 14, if set then this is an address for packets to be sent to the LMA.
If the receiving port is the port specified by the addrPort field (defined below),
then the packets should be sent to the LMA, regardless of the receiving port’s
state; otherwise, the packets should only be sent if the receiving port is in the
proper state and the port specified by addrPort is in the proper state. Each
port’s MAC address is an instance of this entry.
•
entry-bpdu = 13, if set then this is a bridging protocol address, i.e., an address
for packets to be sent to the PPE; there are two such addresses the Bridge
Group Address of IEEE 802.1 Part D Spanning Tree Protocol (normally
01-80-C2-00-00-10), and the IBM Source Routing Spanning Tree Explorer
Group Address (normally 03-00-00-00-80-00).
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