Understanding Switch Acceleration; Switch Acceleration Configuration Modes - Cisco WS-C4003 - Catalyst 4000 Chassis Switch Software Configuration Manual

Understanding Switch Acceleration

Switch Acceleration Configuration Modes

Switch acceleration is supported in different configuration modes. The Supervisor Engine II supports a
mesh configuration with no uplink connections. With the Backplane Channel module installed, two
additional modes are supported.
Figure 32-1
Figure 32-1 Switch Acceleration Configuration Modes
A
SE1
Uplink
C
SE1
Uplink
•
•
•
•
Software Configuration Guide—Catalyst 4000 Family, Catalyst 2948G, Catalyst 2980G, Releases 6.3 and 6.4
32-2
shows the possible configurations.
Backplane
SE2
SE3
Uplink
Backplane
SE2
SE3
Uplink
Option A—no switch acceleration configured (default).
Option B—Fully meshed interconnections between SEs; no Gigabit Ethernet uplink port
connections.
This mode requires that you enable switch acceleration on the supervisor engine.
Option C—Fully meshed interconnections between SEs; 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
configured on the supervisor engine.
Option D—Fully meshed interconnections and multi link load balancing between all SEs; 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
Chapter 32 Configuring Switch Acceleration
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