Juniper IGP - CONFIGURATION GUIDE V11.1.X, Configuration Manual

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Figure 14: Direct Next Hops
Indirect next hops enable multiple routes in the routing table to point to a single next
hop, thereby accelerating convergence. (See Figure 15 on page 132.)
NOTE: Indirect next hops are not limited to any number of levels. In other words,
an indirect next hop can point to a direct next hop or another indirect next hop.
Figure 15: Indirect Next Hops
By using indirect next hops, if a topology change occurs in the network, only the
indirect next hop is modified in the routing table, decreasing the number of state
changes required to achieve convergence.
Platform Considerations
For information about modules that support IPv6 and Neighbor Discovery on the
ERX7xx models, ERX14xx models, and the ERX310 Broadband Services Routers:
■
See ERX Module Guide, Table 1, Module Combinations for detailed module
specifications.
■
See ERX Module Guide, Appendix A, Module Protocol Support for information about
the modules that support IP.
For information about modules that support IP on the E120 and E320 Broadband
Services Routers:
■
See E120 and E320 Module Guide, Table 1, Modules and IOAs for detailed module
specifications.
132 ■
Platform Considerations
JUNOSe 11.0.x IP, IPv6, and IGP Configuration Guide