Overview of Port Extender Model
Satellite Discovery and Control Protocols
A Cisco proprietary discovery and control protocol is used between the satellite switches and the host
Cisco ASR 9000 Series Router devices, to handle discovery, provisioning, and monitoring of the
satellite devices from the host Cisco ASR 9000 Series Satellite System in-band over the ICLs. The
Satellite Discovery And Control (SDAC) Protocol provides the behavioural, semantic, and syntactic
definition of the relationship between a satellite device and its host.
Satellite Discovery and Control Protocol IP Connectivity
The connectivity for the SDAC protocol is provided through a normal in-band IP routed path over the
ICLs using private and public IP addresses appropriate for the carrier's network.
You can configure a management IP address on the host CLI for each satellite switch and corresponding
IP addresses on the ICLs. You can select addresses from the private IPv4 address space (for example,
10.0.0.0/8 or 192.1.168.0/24) in order to prevent any conflict with normal service level IPv4 addresses
being used in the IPv4 FIB. You can also configure a private VRF that is used for only satellite
management traffic, so that the IP addresses assigned to the satellites can be within this private VRF.
This reduces the risk of address conflict or IP address management complexity compared to other IP
addresses and VRFs that are used on the router.
Layer-2 and L2VPN Features
All L2 and L2VPN features that are supported on physical ethernet or bundle ethernet interfaces are also
supported on Satellite Ethernet interfaces. For more details on L2VPN features supported on the Cisco
ASR 9000 Series Satellite System, see Cisco ASR 9000 Series Aggregation Services Router L2VPN and
Ethernet Services Configuration Guide.
Layer-3 and L3VPN Features
All MPLS L3VPN features that are supported on ethernet interfaces such as GRE, netflow, and so on,
are also supported on the Cisco ASR 9000 Series Satellite System. For more information on these
features, see Cisco ASR 9000 Series Aggregation Services Router MPLS Layer 3 VPN Configuration
Guide and Cisco ASR 9000 Series Aggregation Services Router Netflow Configuration Guide.
Layer-2 and Layer-3 Multicast Features
All Layer-2 and Layer-3 multicast features, including IGMP, IGMP snooping, PIM, mLDP, MVPN,
P2MP TE, are supported on Satellite Ethernet interfaces, as they are supported on normal Ethernet and
bundle ethernet interfaces. For more information on these features supported on a satellite system, see
Cisco ASR 9000 Series Aggregation Services Routers Multicast Configuration Guide.
Cisco ASR 9000 Series Aggregation Services Router Interface and Hardware Component Configuration Guide
HC-712
Configuring the Satellite Network Virtualization (nV) System on the Cisco ASR 9000 Series Router
OL-26061-03
Seite drucken