DS3/DS1 Backbone/Trunk capacity planning principles, whether across a Frame
Relay Backbone or Cisco 7000 hdlc trunk network are still the same. It's
just as easy to over configure DS3/DS1 Cisco HDLC trunks as Frame Relay
trunks.
I would have a tendency to disagree with you here, but que sera, sera.
Potentially at issue here is not Frame Relay networks as a transport but that
a Cisco 7000 can not scale properly to support 120+ end-users.Modern Frame Relay switches:
1) have sub-msec latency
2) can support multiple trunks at DS3+ (to include ATM)
3) are not burdened with processing any of the IP layer 3 nor routing overhead
4) because of 3 have a cost per port that is 300 to 400% less than a Cisco 7000
5) can have it's backbone shared across multiple services thereby reducing
both
capitalization and bandwidth expense
6) allow ISP to pass the cost savings on to customers
I partially agree with your points above, but still maintain that it is much
easier to sloppily engineer a frame-relay network than one consisting of
point-to-point links.
My $.02.
- paul