H3C Technologies H3C Intelligent Management Center - Manual (Page 189)

Figure 53 IGP Shortcut and Forwarding Adjacency
As shown in Figure 53 , a TE tunnel is present between Router D and Router C. With IGP Shortcut
enabled, the ingress node Router D can use this tunnel when calculating IGP routes. This tunnel,
however, is invisible to Router A; therefore, Router A cannot use this tunnel to reach Router C. With
Forwarding Adjacency enabled, Router A can know the presence of the TE tunnel and thus
forward traffic to Router C to Router D through this tunnel.
6. If you select Static Routing for Traffic Access Type, you are directed to the Static Routing Access
Configuration page, as shown in
Figure 54 .
Figure 54 Static Routing Access Configuration page
a. In the Next Hop IP (A.B.C.D) field, enter the IP address of the next hop.
b. In the Route Tag (1-4294967295) field, enter the value of the route tag.
Route Tag—Both OSPF and IS-IS allow the association of a 32-bit value called a route tag with
external prefixes. You can consider route tags as a protocol extensibility feature because they
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