User`s guide

8-10 Preliminary November 23, 1998 MultiVoice Gateway for the MAX— User’s Guide
Configuring IP Routing
Configuring the local IP network setup
For Frankfurt, which is 1 hour behind UTC, the time would be:
UTC -0100
Specifying SNTP server addresses
The Host parameter lets you specify up to three server addresses. The MultiVoice Gateway
attempts to communicate with the first address. It attempts the second only if the first is
inaccessible, and the third only if the second is inaccessible.
UDP checksums
If data integrity is of the highest concern for your network, and having redundant checks is
important, you can turn on UDP checksums to generate a checksum whenever a UDP packet is
transmitted. UDP packets are transmitted for queries and responses related to ATMP,
SYSLOG, DNS, ECHOSERV, RADIUS, TACACS, RIP, SNTP, and TFTP.
Setting UDP checksums to Yes could cause a slight decrease in performance, but in most
environments the decrease is not noticeable.
Poisoning dialout routes in a redundant configuration
If you have another Ascend unit backing up the MultiVoice Gateway in a redundant
configuration on the same network, you can use the Adv Dialout Routes parameter to instruct
the MultiVoice Gateway to stop advertising IP routes that use dial services if its trunks
experience an alarm condition. If you do not set the parameter, the MultiVoice Gateway
continues to advertise its dialout routes, which prevents the redundant unit from taking over
the routing responsibility.
Examples of IP network configuration
This section shows some examples of Ethernet profile IP configuration.
Configuring the MultiVoice Gateway IP interface on a subnet
On a large corporate backbone, many sites configure subnets to increase the network address
space, segment a complex network, and control routing in the local environment. For example,
Figure 8-4 shows the main backbone IP network (10.0.0.0) supporting an Ascend GRF router
(10.0.0.17).
Figure 8-4. Creating a subnet for the MultiVoice Gateway
10.2.3.1/24
MultiV
10.0.0.0
GRF
10.0.0.17
WAN