Huawei Quidway NetEngine80E Configuration Manual page 688

HUAWEI NetEngine80E/40E Router
Configuration Guide - IP Routing
[RouterA-isis-1] undo maximum load-balancing
[RouterA-isis-1] quit
# Check the routing table of Router A.
[RouterA] display isis route
IPV4 Destination
-------------------------------------------------------------------------
192.168.1.0/24
10.1.1.0/24
172.16.1.0/24
172.17.1.0/24
10.1.2.0/24
192.168.0.0/24
As shown in the routing table, the default value is used when load balancing is canceled. The
two next hops of Router A, that is, 10.1.1.2 (that is, Router B) and 10.1.1.2 (that is, Router C),
are valid routes. This is because the default value of the maximum equal-cost routes is 3.
Step 5 (Optional) Configure the preference of equal-cost routes on Router A.
If you do not perform load balancing through Router B and Router C, configure the preference
of the equal-cost routes and specify the next hop.
[RouterA] isis
[RouterA-isis-1] nexthop 10.1.2.2 weight 1
[RouterA-isis-1] quit
Step 6 Verify the configuration.
# Check the routing table of Router A.
[RouterA] display isis route
IPV4 Destination
--------------------------------------------------------------------------------
192.168.1.0/24
10.1.1.0/24
172.16.1.0/24
172.17.1.0/24
10.1.2.0/24
192.168.0.0/24
As shown in the routing table, because the preference (metric is 1) of next hop 10.1.2.2 (that is,
Router C) is higher than that of next hop 10.1.1.2 (that is, Router B), IS-IS chooses the route
with the next hop being 10.1.2.2 as the optimal route.
----End
Issue 02 (2014-09-30)
IntCost
20
10
10
30
10
20
Flags: D-Direct, A-Added to URT, L-Advertised in LSPs, S-IGP Shortcut,
NOTE
For different products and different protocols, the maximum number of equal-cost routes is different. You
can adjust the maximum number by purchasing licenses.
IntCost
20
10
10
30
10
20
Flags: D-Direct, A-Added to URT, L-Advertised in LSPs, S-IGP Shortcut,
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Route information for ISIS(1)
-----------------------------
ISIS(1) Level-2 Forwarding Table
--------------------------------
ExtCost ExitInterface
NULL P2/0/0
NULL P1/0/0
NULL GE3/0/0
NULL P1/0/0
P2/0/0
NULL P2/0/0
NULL P1/0/0
U-Up/Down Bit Set
Route information for ISIS(1)
-----------------------------
ISIS(1) Level-2 Forwarding Table
--------------------------------
ExtCost ExitInterface
NULL P2/0/0
NULL P1/0/0
NULL GE3/0/0
NULL P1/0/0
NULL P2/0/0
NULL P1/0/0
U-Up/Down Bit Set
7 IS-IS Configuration
NextHop Flags
10.1.2.2 A/-/L/-
Direct D/-/L/-
Direct D/-/L/-
10.1.1.2 A/-/L/-
10.1.2.2
Direct D/-/L/-
10.1.1.2 A/-/L/-
NextHop Flags
10.1.2.2 A/-/L/-
Direct D/-/L/-
Direct D/-/L/-
10.1.2.2 A/-/L/-
Direct D/-/L/-
10.1.1.2 A/-/L/-
663