Bpx Routing Hubs In A Tiered Network; Figure 1-6 Tiered Network With Bpx Switch And Igx Switch Routing Hubs - Cisco BPX 8620 Installation And Configuration Manual

Chapter 1 The BPX Switch: Functional Overview
Figure 1-6 Tiered Network with BPX Switch and IGX Switch Routing Hubs
Voice, Data,
and
IGX
Frame Relay
Shelf
IGX
Shelf
IGX
Frame
Shelf
Relay
Frame Relay
T1/E1 ATM

BPX Routing Hubs in a Tiered Network

Tiered networks with BPX routing hubs have the capability of adding interface shelves/feeders
(nonrouting nodes) to an IGX/BPX routing network as shown in Figure 1-7. Interface shelves allow the
network to support additional connections without adding additional routing nodes.
The MGX 8220 or MGX 8800 and IGX 8400 nodes configured as interface shelves are connected to BPX
routing hubs.
The MGX 8220 and MGX 8800 support frame T1/E1, X.21 and HSSI Frame Relay, ATM T1/E1, and
CES.
Release 9.3.30, Part Number 78-12907-01 Rev. E0, May 2005
Access
(Feeder)
Layer
Concentration
Layer
IGX
Hub
ATM
Core Layer
IGX
switch
BPX
switch
BPX
Hub
MGX
8220
CES
FUNI
IGX
Shelf
IGX
Hub
IGX
switch
BPX
switch
BPX
Hub
IGX
Shelf
IGX
Shelf
Frame
Relay
Frame
Relay
Cisco BPX 8600 Series Installation and Configuration
BPX Switch Operation
Voice, Data,
and
Frame Relay
IGX
Shelf
Frame Relay
MGX
T1/E1 ATM
8220
CES
FUNI
1-15