Alcatel-Lucent 9500 MXC User Manual page 831

3DB 23063 ADAA - Rev 004 July 2007
Rules, Hints, and Tips
• Static routing can be used with single or interface IP addressing.
• When static routing is used with interface addressing, the destination address for a
LINK NMS entry must be the network address for the node at the far end of the link
- not the address of the interface.
Example CT static routing screens are shown in Figure F-3 on page F-7 and Figure
F-5 on page F-9.
For dynamic routing the options are OSPF, RIP1, and RIP2:
• OSPF is the more recent and more comprehensive protocol. OSPF is not
metric-hop limited, unlike RIP, which has a hop-count limit of 15 hops.
• RIP2 is recommended over RIP1. RIP2 is backward compatible with RIP1.
• OSPF can be used in conjunction with RIP, for example a 9500 MXC network
may be set for OSPF, with terminals on an adjoining network set for RIP. Interface
addressing should be used on the 9500 MXC terminal at the interface (OSPF and
RIP network interface) so that OSPF and RIP is only set on the 9500 MXC NMS
Ethernet port.
Dynamic routing would normally be used in preference to static routing (it easier to set
and maintain).
• Each 9500 MXC node counts as just one IP hop (one metric hop) for RIP hop count
purposes, and applies regardless of whether single IP addressing or interface IP
addressing is selected. This means that the number of 9500 MXC links that can be
traversed with RIP1 or RIP2 selected is 15, which is the RIP count limit.
Note: Networks made up of back-to-back connected radio terminals are restricted to
7 hops because each terminal has a unique IP address, and the hard-wired
Ethernet connection between them counts as one additional hop. Therefore
each link in such a network accounts for two IP hops.
9500 MXC User Manual
Vol. VI-D-5