Routing Management Policy - Huawei Quidway S5600 Series Operation Manual

Operation Manual – Routing Protocol
Quidway S5600 Series Ethernet Switches-Release 1510
R6 R6 R6 R6
15.0.0.2 15.0.0.2 15.0.0.2 15.0.0.2
15.0.0.0 15.0.0.0 15.0.0.0 15.0.0.0
15.0.0.1 15.0.0.1 15.0.0.1 15.0.0.1
R2 R2 R2 R2
14.0.0.2 14.0.0.2 14.0.0.2 14.0.0.2
14.0.0.0 14.0.0.0 14.0.0.0 14.0.0.0
14.0.0.1 14.0.0.1 14.0.0.1 14.0.0.1
R1 R1 R1 R1
Figure 1-2 Routing table
The Quidway S5600 Series Ethernet Switches (hereinafter referred to as S5600 series)
support the configuration of static routes as well as a series of dynamic routing
protocols such as RIP, OSPF and BGP. Moreover, the switches in operation can
automatically obtain some direct routes according to interface status and user
configuration.

1.2 Routing Management Policy

On an S5600 switch, you can manually configure a static route to a certain destination,
or configure a dynamic routing protocol to make the switch interact with other routers in
the internetwork and find routes by routing algorithm. On an S5600 switch, the static
routes configured by the user and the dynamic routes discovered by routing protocols
are managed uniformly. The static routes and the routes learned or configured by
different routing protocols can also be shared among routing protocols.
1.2.1 Routing Protocols and Preferences
Different routing protocols may discover different routes to the same destination, but
only one route among these routes and the static routes is optimal. In fact, at any given
moment, only one routing protocol can determine the current route to a specific
destination. Routing protocols (including static routing) are endowed with different
preferences. When there are multiple routing information sources, the route discovered
by the routing protocol with the highest preference will become the current route.
Routing protocols and their default route preferences (the smaller the value, the higher
the preference is) are shown in Table 1-1.
16.0.0.1 16.0.0.1 16.0.0.1 16.0.0.1 16.0.0.3 16.0.0.3 16.0.0.3 16.0.0.3
16.0.0.0 16.0.0.0 16.0.0.0 16.0.0.0
16.0.0.2 16.0.0.2 16.0.0.2 16.0.0.2
R5 R5 R5 R5
13.0.0.3 13.0.0.3 13.0.0.3 13.0.0.3
13.0.0.2 13.0.0.2 13.0.0.2 13.0.0.2
13.0.0.0 13.0.0.0 13.0.0.0 13.0.0.0
13.0.0.4 13.0.0.4
13.0.0.4 13.0.0.4
13.0.0.1 13.0.0.1 13.0.0.1 13.0.0.1
R3 R3 R3 R3
12.0.0.2 12.0.0.2 12.0.0.2 12.0.0.2
12.0.0.3 12.0.0.3 12.0.0.3 12.0.0.3 12.0.0.1 12.0.0.1 12.0.0.1 12.0.0.1
12.0.0.0 12.0.0.0 12.0.0.0 12.0.0.0
Huawei Technologies Proprietary
Chapter 1 IP Routing Protocol Overview
R7 R7 R7 R7
10.0.0.2 10.0.0.2 10.0.0.2 10.0.0.2
Routing table of router R8 Routing table of router R8 Routing table of router R8 Routing table of router R8
10.0.0.0 10.0.0.0 10.0.0.0 10.0.0.0 Destination Destination Destination Destination
network network
network network
10.0.0.0 10.0.0.0 10.0.0.0 10.0.0.0
2 2 2 2
10.0.0.1 10.0.0.1 10.0.0.1 10.0.0.1
11.0.0.0 11.0.0.0 11.0.0.0 11.0.0.0
3 3 3 3
R8 R8 R8 R8
12.0.0.0 12.0.0.0 12.0.0.0 12.0.0.0
13.0.0.0 13.0.0.0 13.0.0.0 13.0.0.0
1 1 1 1
11.0.0.1 11.0.0.1 11.0.0.1 11.0.0.1
14.0.0.0 14.0.0.0 14.0.0.0 14.0.0.0
15.0.0.0 15.0.0.0 15.0.0.0 15.0.0.0
11.0.0.0 11.0.0.0 11.0.0.0 11.0.0.0
16.0.0.0 16.0.0.0 16.0.0.0 16.0.0.0
11.0.0.2 11.0.0.2 11.0.0.2 11.0.0.2
R4 R4 R4 R4
1-4
Next hop Interf ace Next hop Interf ace Next hop Interf ace Next hop Interf ace
10.0.0.1 10.0.0.1 10.0.0.1 10.0.0.1 2 2 2 2
11.0.0.1 11.0.0.1 11.0.0.1 11.0.0.1 1 1 1 1
11.0.0.2 11.0.0.2 11.0.0.2 11.0.0.2 1 1 1 1
13.0.0.4 13.0.0.4 13.0.0.4 13.0.0.4 3 3 3 3
13.0.0.2 13.0.0.2 13.0.0.2 13.0.0.2 3 3 3 3
13.0.0.2 13.0.0.2 13.0.0.2 13.0.0.2 3 3 3 3
10.0.0.2 10.0.0.2 10.0.0.2 10.0.0.2 2 2 2 2