Cisco Systems 8600 Series manual IGX Shelves and Routing Hubs, Frame Relay Connections

IGX Routing Hubs in a Tiered Network

Figure 13-4 IGX Shelves and Routing Hubs, Frame Relay Connections

SV+

SNMP

IGX

ATMIGX

routing hub network

IGX

BPX IGX

	--ATFR conn for
	middle segment
	IGX
	hub
BTM-E1	--Frame relay	2 or 3 segment
		Frame relay

conns on	connections
interface shelves

BTM-E1

IGX IGX IGX

The IGX Frame Relay Cards are the

FRM, UFM-U, UFM-C.

The Trunk card on both ends of IGX feeder trunk is the BTM-E1, T3, or E3.

	Legend
	Depicts an IGX
IGX	interface shelf

IGX	Depicts an IGX	IGX	Depicts an IGX
hub	routing hub		routing node

S6415

Tiered Network Implementation

The following applies to IGX routing hubs and interface shelves:

•An IGX routing hub supports up to 4 IGX interface shelves.

•An IGX interface shelf can have only one feeder trunk to the routing network.

•An IGX interface shelf is the only type of interface shelf that can connect to IGX routing hubs.

•No direct trunking between interface shelves is supported.

•No routing trunk is supported between the routing network and interface shelves.

•The feeder trunks between IGX hubs and IGX interface shelves are connected to a BTM-E1 backcard on each end of the trunk.

•Voice and data connection management to an IGX interface shelf is provided by Cisco StrataView Plus

•Telnet is supported to an interface shelve; the vt command is not.

13-10Cisco BPX 8600 Series Reference