Dynamic Icl; Multiple Iccp Groups For Satellite Nv System Network Topologies - Cisco ASR 9000 Series System Configuration Manual
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Configuring the Satellite Network Virtualization (nV) System
Dynamic ICL
The Dynamic ICL feature allows you to configure ICL on the 1 GigE satellite ports 42 and 43 apart from the
designated four 10GigE ports on the Cisco ASR 9000v and Cisco ASR 9000v2 satellites. The Cisco ASR
9000v satellites can have, by default, up to 6 potential ICLs. These are the four 10 GigE ports(44-47) and two
1 GigE ports (42-43) and 42 fixed 1 GigE access ports (0-41). The two 1 GigE ports (42-43) that are considered
as potential ICLs are special ports that can be used either as ICLs or as access ports. When these two ports
(42-43) are configured as access ports, they are not considered as potential ICLs thereafter and therefore
behave like any other 1 GigE access ports till the next reload. When the satellite reloads and comes back up,
those two ports again become as potential ICLs. When the satellite gets discovered and connects back to the
host and if the host cross-link configuration still has the ports 42 and 43 as access ports, then these ports again
switch to the access port mode and exhibit the behavior like any other 1 GigE access ports. This feature is
supported on all the existing satellite topologies.
In case of the dual head satellite network topology, if any of these ports(42-43) is configured as access port
in at least one of the host and if that host becomes active, then that port are not considered as potential ICLs
anymore till next satellite reload.
You cannot bundle Dynamic ICL ports that are of dissimilar types. For example, you cannot bundle 1GigE
and 10GigE ports.
The two ports (42 and 43) when used as access ports, lose the link integrity when the satellite reloads.
Note
The remote devices connected to these two ports stay up momentarily just after the satellite reload and
till the satellite gets connected to the host and receives the cross-link configuration again.
For more information, see Cisco ASR 9000 Series Aggregation Services Router nV System Configuration
Guide
Multiple ICCP Groups for Satellite nV System Network Topologies
The Multiple ICCP group feature allows you to configure multiple redundancy groups on a single host. These
redundancy groups function completely independently of each other. The primary function of this feature is
to support multiple satellites that are dual-homed to different but overlapping pairs of Cisco ASR 9000 Series
Routers. Multiple redundancy groups are supported on all the advanced satellite network topologies, such as:
• Dual Home network topology
• Hub & Spoke topology
• Simple Ring topology
• Layer 2 Fabric topology
In a multiple ICCP redundancy group setup, failovers can happen similar to the case of a basic Dual Home
setup. See the
seamless split brain handling.
For more information, see Cisco ASR 9000 Series Aggregation Services Router nV System Configuration
Guide
Features of Dual Home Network Architecture, on page 12
Cisco ASR 9000 Series Aggregation Services Router nV System Configuration Guide, Release 5.3.x
Dynamic ICL
for information on support for
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