Configuring Switch Acceleration On The Switch - Cisco WS-C2950SX-48-SI Configuration Manual

Configuring Switch Acceleration on the Switch

Switch acceleration is supported in different configuration modes. Supervisor Engine II supports a mesh
configuration with no uplink connections. With the Backplane Channel Module installed, two additional
modes are supported.
Figure 36-1
Figure 36-1 Switch Acceleration Configuration Modes
A
SE1
Uplink
C
SE1
Uplink
•
•
•
•
Configuring Switch Acceleration on the Switch
By default, switch acceleration is disabled on the Supervisor Engine II. Before you enable switch
acceleration, you need to disable the two front-panel Gigabit Ethernet uplink ports on Supervisor
Engine II.
Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide
36-2
shows the possible configurations.
Backplane
SE2
SE3
Uplink
Backplane
SE2
SE3
Uplink
Option A—No switch acceleration is configured (default).
Option B—Fully meshed interconnections exist between SEs; there are no Gigabit Ethernet uplink
port connections.
This mode requires that you enable switch acceleration on the supervisor engine.
Option C—Fully meshed interconnections exist between SEs; there is dual-link load-balancing
between SE1 and SE2 and between SE2 and SE3; Gigabit Ethernet uplink port connections.
This mode requires that the Backplane Channel Module is installed and that switch acceleration is
not configured on the supervisor engine.
Option D—Fully meshed interconnections and multi-link load balancing exist between all SEs;
there are no Gigabit Ethernet uplink port connections.
This mode requires that the Backplane Channel Module is installed and that switch acceleration is
configured on the supervisor engine.
B
Backplane
SE2
SE1 SE3
X X
Uplink Uplink
D
Backplane
SE2
SE1 SE3
X X
Uplink Uplink
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Chapter 36 Configuring Switch Acceleration
Release 8.1
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