IBM Nortel Networks L2/3, Manual

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Nortel Networks L2/3 Ethernet Switch Module for IBM
Eserver
BladeCenter
4.1 Nortel GbESM architecture overview
The Nortel Networks Layer 2/3 GbE Switch Module is a fully functional Layer 2 and 3 switch
that includes Layer 4 awareness and capability. Figure 4-1 shows the architecture overview of
the Nortel Networks Layer 2/3 GbE Switch Module.
The Nortel GbESM has 14 internal 1 Gbps links to connect to blade servers and six external
Gigabit ports to connect to upstream switches. The switch module has two 100 Mbps
connections to the Management Modules. You can manage the Nortel GbESM through the
connection between the Nortel GbESM and the Management Module. You can also manage
the Nortel GbESM like other switches with the RS232 console port that looks similar to a USB
port. The console port is a service port to which you can connect a terminal or PC in order to
configure the software through the command-line interface (CLI) or to troubleshoot problems
with the switch.
Figure 4-1 Nortel Networks L2/3 GbESM architecture overview
Figure 4-2 on page 23 shows the architecture for Ethernet connectivity. The two Nortel
GbESMs can be housed within the BladeCenter chassis. Each Nortel GbESM provides six
uplink ports, which can be grouped to support 802.3ad Link Aggregation. The blade server
has two NICs, with NIC 1 connecting to Nortel GbESM 1 and NIC 2 connecting to Nortel
GbESM 2. The links connecting the blade servers to the Nortel GbESMs are on the
backplane of the BladeCenter chassis. The Nortel GbESM has two links to the Management
Modules. Each link connects to a different Management Module.
Nortel
Networks
L2/3
GbESM
Module
14 ports
1000 Mbps
Internal
links
to
Blade
Servers
2 ports -100 Mbps
Internal links to the
Management Modules
6 ports
10/100/1000 Mbps
RJ45 links for external
network connections
1 port
RS232 Serial console
connection port on
faceplate
Nortel
Networks
L2/3 GbESM Connections
INT1
INT2
INT3
INT4
INT5
INT6
INT7
INT8
INT9
INT10
INT11
INT12
INT13
INT14
MGT1
MGT2
EXT1
EXT2
EXT3
EXT4
EXT5
EXT6
1
2
3
4
5
6
Blade1
Blade2
Blade3
Blade4
Blade5
Blade6
Blade7
Blade8
Blade9
Blade0
Blade1
Blade2
Blade3
Blade4
MM1
MM2
Serial
IBM eServer BladeCenter