Nokia ESB26 User Manual page 13

1.
Legend:
Forwarding
Blocked
VLANs
Cisco 3550s
or ESB26s
IPET-
cabinet
3550
ESB26
ESB26
IPET
Figure 1-1 Example of Operational Environment for the ESB26 with L2 OSRs
Legend
Forwarding
Blocked
VLANs
Cisco 3550s or
ESB26s (possible
with L3 software)
IPET-cabinet
3550
ESB26 ESB26
IPET
Figure 1-2 Example of Operational Environment for the ESB26 with L3 OSRs.
MN700004 Rev 01
Introduction
TGSU
ESB26 ESB26 ESB26
Cisco 3550s
3550
or ESB26s
OSR
3550
ESB26 ESB26
IPET
TGSU
ESB26 ESB26 ESB26
3550
OSR
3550
ESB26 ESB26
IPET
TGSU
ESB26
3550
OSRs used as L2-
devices
OSR
Cisco 3550s
or ESB26s
3550
ESB26 ESB26
IPET
TGSU
ESB26
Cisco 3550s or
ESB26s (possible
3550
with L3 software)
OSRs used as L3-
OSR
devices
3550
ESB26 ESB26
IPET
2
Rapid-
STP
GSR
GSR
Rapid-
STP
IPET-
cabinet
Rapid-
3550
STP
ESB26 ESB26
IPET
Rapid-
STP
Cisco 3550s or
ESB26s (possible
with L3 software)
IPET-cabinet
3550
Rapid-
STP
ESB26 ESB26
IPET