Cisco Systems BC-109 manual Adding a Static RIF Cache Entry for a Two-Hop Path Example

Adding a Static RIF Cache Entry for a Two-Hop Path Example

Figure 60 Assigning a RIF to a Source-Route Bridge

Token	Token
Ring 8	Ring 9
Bridge 1		IBM PC
	1000.5A12.3456

S1100a

The static RIF entry would be submitted to the router on the left as follows:

rif 1000.5A12.3456 0630.0081.0090

Adding a Static RIF Cache Entry for a Two-Hop Path Example

In Figure 61, assume that a datagram was sent from a router on ring 21 (15 hexadecimal), across Bridge 5 to ring 256 (100 hexadecimal), and then across Bridge 10 (A hexadecimal) to ring 1365 (555 hexadecimal) for delivery to a destination host on that ring.

Figure 61 Assigning a RIF to a Two-Hop Path

Ring	Ring	Ring
21	256	1365
Bridge 5		Bridge 10

S1101a

IBM PC

1000.5A01.0203

The RIF in the router on the left describing this two-hop path is 0830.0155.100a.5550 and is entered as follows:

rif 1000.5A01.0203 0830.0155.100a.5550

SR/TLB for a Simple Network Example

In the simple example illustrated in Figure 62, a four-port router with two Ethernets and two Token Rings is used to connect transparent bridging on the Ethernets to SRB on the Token Rings.

Figure 62 Example of a Simple SR/TLB Configuration

	Virtual ring 10
Token				E1
			Router
Ring 1	T0
			T1
		Token
		Ring 2

E0

Pseudo ring 3

S1274a

Configuring Source-Route Bridging BC-153