Cabletron Systems SmartSwitch 6500, Installation And Setup Manual

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4-8 SmartSwitch 6500 Installation and Setup Guide
Managing Your ATM Network ATM Administrator
Figure 4-6 Switches that ATM Administrator cannot reach through Ethernet
Figure 4-7 is a diagram of the ATM and Ethernet connectivity of the network map shown in Figure 4-6. Notice that the
generic switches, 90.1.1.20 (Switch 4) and 90.1.1.24 (Switch 5), are not connected to the Ethernet network. As a result,
switches 4 and 5 do not have direct access to the NMS, and the NMS (using an Ethernet connection) does not know
how to reach the subnet 90.0.0.0, which is Switches 4 and 5’s ELAN.
Figure 4-7 Ethernet connected ATM Administrator
This connectivity problem can be fixed by creating routes between the NMS and the non-Ethernet connected switches:
1.
Add a route on the NMS that specifies the gateway to 90.0.0.0 as the Ethernet interface of a switch
that has connectivity to both Ethernet and the ATM ELAN.
Ethernet Network = 126.231.44.0
Switch 2 Switch 3
Switch 4 Switch 5
Network Management Station
Switch 1
LANE
Server for
all ATM Switches
90.1.1.0
255.0.0.0
ENET = 126.231.44.22 ENET = 126.231.44.15 ENET = 126.231.44.16
LEC = 90.1.1.20 LEC = 90.1.1.24
126.231.44.10
LEC = 90.1.1.15
LEC = 90.1.1.22
LEC = 90.1.1.16
Ethernet only
AT
M
AT
M
ATM
ATM
Switch 6
ENET = 126.231.44.19
LEC = 90.1.1.19
ATM
ATM Administrator's Ethernet
connection cannot reach
Switch 4 and 5.
Switch 4 and 5 are
connected to the
network through ATM only.