Alcatel-Lucent 7750 SR - Figure 129: Directly Connected IP Target; Figure 130: Multiple Hops to IP Target

VPRN Service Overview
Page 1056 7750 SR OS Services Guide
CPE Connectivity Check
Static routes are used within many IES and VPRN services. Unlike dynamic routing protocols,
there is no way to change the state of routes based on availability information for the associated
CPE. CPE connectivity check adds flexibility so that unavailable destinations will be removed
from the service provider’s routing tables dynamically and minimize wasted bandwidth.
Figure 129: Directly Connected IP Target
Figure 130: Multiple Hops to IP Target
Fig_18
Server B.1
10.1.1.0/31
Static-route 11.11.A.0/24 nexthop 10.1.1.2 cpe-check 10.1.1.2 interval 1 drop-count 2
Static-route 11.11.B.0/24 nexthop 10.1.1.2 cpe-check 10.1.1.2 interval 1 drop-count 2
.1.2
CPE
11.1.B.0
11.1.A.0
Server A.1
VPRN A
7750-1
Node A
Backbone
Fig_19
Server B.1
10.2.2.0/24
.1254
11.1.B.0
11.1.A.0
Server A.1
.1.2
10.1.1.0/31
Management
CPE
IC-route 11.11.A.0/24 nexthop 10.1.1.2 cpe-check 10.2.2.254 interval 1 drop-count 2
IC-route 11.11.B.0/24 nexthop 10.1.1.2 cpe-check 10.2.2.254 interval 1 drop-count 2
VPRN A
7750-1
Node A
Backbone