Ruijie RG-S2900G-E Series, Configuration Manual

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Configuration Guide IPv4 Express Forwarding Configuration
To monitor and maintain the express forwarding table, the following commands are provided:

Global statistics

Adjacency table

Packet forwarding path

Routes in express forwarding table

Synchronize express forwarding table to hardware forwarding table
Global Statistics
Global statistics refers to the data structure related information in the existing fast forwarding
table, including the number of existing routes, the number of adjacent nodes, the number of load
balancing tables and the number of weighted nodes.
Command Function
Ruijie# show ip ref
Display statistics in the existing express
forwarding table.
Adjacency Table
In the express forwarding table, adjacency list is one of the important data structure. Execute the
following commands to view existing adjacency information:
Command Function
Ruijie# show ip ref adjacency [glean |
local | ip | (interface interface_type
interface_number ) ]
Display the glean adjacency, local adjacency,
IP-specific adjacency, interface-specific
adjacency and all adjacent nodes.
In the event of the following cases, the adjacency table will be used to forward packets.
1. Direct route, such as 1.1.0.0/16 vlan1
2. A route with longer mask than the direct route, such as 1.1.1.0/24 vlan2
2.2.2.2
3. Neighbor with direct route, such as 1.1.1.1.
Packets with destination IP address being 1.1.1.1 will be forwarded according to the information
of adjacency 1.1.1.1, as 1.1.1.1/32 is the longest match route.
Routes in Express Forwarding Table
Express forwarding receives external route advertisement and maintains its own express
forwarding table, which is a mirror image of core routing table sharing same routing information.
Execute the following commands to display relevant routing information in the express
forwarding table.
Command Function