aneopsf的部落格

To go by your BSCI communicating and pull in your CCNP certification, you've got to artist track account. When you get to the BSCI level, really breaking the routes hair into positional notation strings and activity summarization is second quality to you. (If it isn't, get many more practice!) What makes CCNP / BSCI tour summarisation much tough is basically keeping the different rule account commands straight!

RIP and EIGRP some get something done line summarisation at the interface horizontal beside the ip summary-address tell. In the pursuing example, R2 is running RIP and was causation cardinal routes to R3, R3's array looked similar this earlier summarization:

R3#show ip line rip

172.16.0.0/24 is subnetted, 4 subnets

R 172.16.8.0 [120/1] via 172.23.23.2, 00:00:02, Ethernet0

R 172.16.9.0 [120/1] via 172.23.23.2, 00:00:02, Ethernet0

R 172.16.10.0 [120/1] via 172.23.23.2, 00:00:02, Ethernet0

R 172.16.11.0 [120/1] via 172.23.23.2, 00:00:02, Ethernet0

By summarizing the routes and exploitation the ip summary-address command, RIP advertises single the rundown highway to the downstream neighbor.

R2(config)#int ethernet0

R2(config-if)#ip summary-address rip 172.16.8.0 255.255.252.0

R3#clear ip line *

R3#show ip route rip

172.16.0.0/22 is subnetted, 1 subnets

R 172.16.8.0 [120/1] via 172.23.23.2, 00:01:24, Ethernet0

EIGRP works by a long way the aforementioned way, not including that the EIGRP AS figure essential be called in the ip summary-address charge.

In the later example, R2 was promotion iv separate routes to R3 via EIGRP 100: 100.0.0.0, 101.0.0.0, 102.0.0.0, and 103.0.0.0, all near an eight-bit costume. What rundown major road can be utilised here?

The summary is 100.0.0.0 252.0.0.0. To send away that itinerary to downstream routers, tack the ensuing on R2:

R2(config)#interface ethernet0

R2(config-if)#ip summary-address eigrp 100 100.0.0.0 252.0.0.0

R3 will next have with the sole purpose one path in its EIGRP array - the unofficial course.

R3#show ip channel eigrp

D 100.0.0.0/6 [90/2297856] via 172.23.23.2, 00:02:33, Ethernet0

By education fundamental binary skills and conformation in heed that RIP and EIGRP execute path report at the interface level, you're one tactical maneuver mortal to fugacious your BSCI test and earning your CCNP certification!

In the next chunk of this tutorial, we'll hold a careful form at the distinguishable methods OSPF uses for circuit summarisation.