Routing Management Policy - Huawei Quidway S3900 Series Operation Manual
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Operation Manual – Routing Protocol
Quidway S3900 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 S3900 Series Ethernet Switches (hereinafter referred to as S3900
series) support the configuration of static routes as well as a series of dynamic routing
protocols such as RIP and OSPF. 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 S3900 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 S3900 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
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
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