Multi-Link Trunking; Vlan Support; Igmp Snooping; Ascii Configuration File - Nortel BayStack 325-24G Specifications

from the Nortel Networks Web site for
either the BayStack 325-24T Switch or
BayStack 325-24G Switch. This saves
network administrators time in downloading
images if both models of BayStack 325
Switches are present in the network.
Other BayStack switches support a differ-
ent version of BoSS.
BoSS version 3.0 is currently shipping with
the BayStack 325 Switches. In the future, a
single image will be available that can be used
for BayStack 325, 425, and 420 Switches.

Multi-Link Trunking

Multi-Link Trunking (MLT) enables grouping of links between a BayStack 325 Switch and
another switch or a server to provide greater bandwidth with active redundant links (Figure 4).
The BayStack 325 Switches support up to six MLTs per switch with up to four ports per MLT.

VLAN support

Up to 32 port-based VLANs can be established on a BayStack 325 Switch, to extend the
broadcast domain and segment network traffic for higher network efficiency. IEEE 802.1Q
VLAN Trunking is supported on every port of the switch, allowing efficient means of trans-
porting broadcast domains. VLANs reduce administration costs by simplifying network moves,
adds, and changes. BayStack 325 Switches have been architected to support 255 VLANs in
the future.
Enterprise-sized MAC address table
BayStack 325 Switches support up to 8,000 MAC addresses, providing ample scalability for
growing networks wishing to connect many devices and workgroups to each switch.

IGMP snooping

BayStack 325 Switches feature IP Multicast support by examining ('snooping') all Internet Group
Multicast Protocol (IGMP) traffic in hardware at line rate, and filtering out multicast streams
not of interest to particular end-stations, thereby enabling peak computer performance.
Nortel Networks Command Line Interface (NNCLI)
The NNCLI is used to automate general management and configuration of BayStack 325
Switches. The NNCLI is used through a Telnet session or through the serial port on the console.

ASCII configuration file

BayStack 325 Switches can download a user-editable ASCII configuration file from a TFTP
(Trivial File Transfer Protocol) server. The ASCII configuration file can be loaded automati-
cally at boot time or on-demand using the management systems (console menus or CLI).
Once downloaded, the configuration file automatically configures the switch according to
the NNCLI commands in the file. This feature allows the flexibility of creating command
configuration files that can be used on the switches with minor modifications.
ASCII configuration file generator
This feature works by reading the current configuration on the switch and generating the
appropriate NNCLI commands to recreate that configuration. Basically, it provides the
ability to view and store the switch configuration in a text, editable format. The generated
file can be stored on an external server and also used to restore the switch configuration.
Figure 4. Multi-Link Trunking (MLT)
MLT with load-balancing and fail-
over protection for uninterrupted
access to servers or the network
center
Server
BayStack 325-24G Switch
Passport 1612G Switch
3