H3C Technologies H3C S7500E Series Switches - Manual (Page 181)

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Configuring the Traffic Forwarding Mode of SRPUs
Introduction to SRPU traffic forwarding mode
The S7500E series Ethernet switches support multiple types of SRPUs, which support different traffic
forwarding modes. You can configure the SRPU traffic forwarding mode as needed.
Traffic forwarding modes supported by S7500E SRPUs
SRPU model
Supported
traffic
forwarding
mode
Feature
Recommended
application
environment
Enhanced Layer
2 forwarding
mode
Supporting selective QinQ
Double-tagged VLAN
networks
LSQ1SRP2XB
LSQ1SRPA
LSQ1SRPB
LSQ1MPUA
LSQ1CGP24TSC
LSQ1CGV24PSC
LSQ1SRPD
LSQ1MPUB
LSQ1SRP12GB
Standard
forwarding mode
z Supporting QinQ
z Powerful Layer 3 forwarding functions
Common networks
Enhanced Layer
2 forwarding
mode with the
MAC extension
function
z Supporting selective QinQ
z Providing a 128K MAC address table
and a 4K routing table
Double-VLAN-tag
networks with a large
quantity of MAC
addresses
Standard
forwarding mode
with the MAC
extension
function
z Supporting QinQ
z Powerful Layer 3 forwarding functions
z Providing a 128K MAC address table
and a 4K routing table
Networks having a
large quantity of MAC
addresses and low
requirements on
routing table size
LSQ1SRP1CB
Standard
forwarding mode
with the route
extension
function
z Supporting QinQ
z Powerful Layer 3 forwarding functions
z Providing a 32K MAC address table
and a 128K routing table
Networks having high
requirements on
routing table size