Madge Networks CrossFire 8300, Руководство по эксплуатации

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CrossFire 8300/8301 Stacker Guide to Operation, DOC-7092 v. 1.0 6. Switch Configuration
(IP-protocol stack), and consequently it needs a MAC Address. In the switch, these
two logical units use the same address, however this address must be unique in the
network. This is ensured by assigning MAC address to BRFs from the Switch Base
A 32 (0x20) and upwards. The switch is designed in such a way, that it
operates with 63 active or preferred VLAN’s, implying that 63 MAC addresses
need to be reserved for BRF.
Summarizing each switch reserve: Switch Base A 31 Addresses for Token-
Ring ports + 63 MAC Addresses for BRFs = 95, which is rounded up to 96 or
hexadecimal 0x60.
The MAC address of the default BRF (trnet-default) will always be the switch base
a 32. If the switch operates in a stack, only one of the switches will operate
the bridge relay function. Hence the MAC address of the default BRF will be based
on the address of the stackmaster. The stackmaster is determined by software, when
the stack consists of two switches back to back and by the port numbers in
CrossFire 8300/8635 stack configurations.
There is no simple rule to find the default MAC address of other BRFs, but it is
always in the range as described in the following:
Stack Master Base A 32 < BRF MAC Address < Stack Master Base
A 95. And a BRF (VLAN) MAC address is assigned, when the VLAN
becomes preferred (that is, it has an assigned port in the actual switch or stack
of switches) by selecting the lowest available MAC address above Stack Master
Base A 32.
If management (SNMP or TELNET) contact with the switch is lost (because, for
example, ports are moved from one BRF to another) it is suggested, that a terminal is
connected to the OBM port of the switch stack, and the IP Configuration menu is
entered. From here, it is possible to read the MAC address of the management entity
(BRF).
In version 3.10.0 (and later) it is possible to assign an individual, locally
administrated MAC address to each VLAN.
➽
➽ ➽
➽
Note ! A reboot of the switch is necessary after assigning the VLAN LAA. See the
user documentation supplied with the switch.
Address Format
Display format used for MAC addresses (canonical or non-canonical). Canonical
format is typically used in Ethernet networks and is also known as least significant
bit first. Non-canonical is typically used in Token-Ring networks and is also known
as most significant bit first.