Cisco Systems 8600 Series manual IGX Routing Hubs in a Tiered Network

IGX Routing Hubs in a Tiered Network

IGX Routing Hubs in a Tiered Network

With tiered networks, IGX nodes on the edge of the network are configured as interface shelves and are connected to IGX nodes configured as router hubs. The interface shelves allow the network to support additional voice, data and frame relay connections without adding additional routing nodes. An example of 3-segment voice and data connections via an IGX interface shelf and IGX routing hubs is shown in (Figure 13-3). An example of a frame relay connection via an IGX interface shelf and routing hubs is shown in (Figure 13-4).

Figure 13-3 IGX Shelves and Routing Hubs, Voice and Data Connections

Cisco StrataView Plus

SNMP

			IGX
	ATM	IGX	shelf
	routing	hub
	network
			IGX
BPX	IGX		shelf
switch	switch
			--CBR conn for
		IGX	middle segment
	BTM-E1	hub		3 segment
			--voice and data	voice and data
				connections
			conns on
	BTM-E1
			interface shelves
	IGX		IGX
	shelf	IGX	shelf

shelf	The IGX voice card is the CVM or UVM.
	The IGX data cards are the LDM and HDM.
	The trunk card on both ends of the IGX
	feeder trunk is the BTM-E1, T3, or E3.

Legend

Depicts an IGX	IGX	Depicts an IGX	IGX	Depicts an IGX
IGX interface shelf	hub	routing hub	switch	routing node
shelf

S6414

Tiered Networks 13-9