Monitoring and Management Tools

SP Switch Router UNIX tools

The UNIX route command can be used to manually add or delete routes. When route is used, no media card or system reset is needed to install the new routes, the new routes are updated in the kernel and downloaded into each media card automatically.

The SP Switch Router grrt command can also be used to examine the routing table on a specific media card but it is not recommended for routing table configuration because it does not ensure that routing tables are synchronized among the various media cards.

Static routes can also be set by editing the /etc/grroute.conf configuration file. Changes made via this configuration file do not take effect until the affected media card is reset or the SP Switch Router system is reset.

IP dynamic routing can be configured by editing the /etc/gated.conf configuration file and running the gated daemon in the SP Switch Router. GateD implements complex routing protocols. Please refer to the GRF Reference Guide and the GRF Configuration Guide for information about using GateD on the SP Switch Router.

Note: If you plan to run GateD, set up your static routes in /etc/gated.conf by using the Static statement. If you add routes using the route command when GateD is active, those routes are not maintained and are removed by GateD.

grroute.conf file

Route tables can also be set by editing the /etc/grroute.conf configuration file. Changes made via this configuration file do not take effect until the affected media card is reset. Information in grroute.conf is eventually turned into route commands.

tcpdump

This standard UNIX media examination tool is modified for use with media card protocols. tcpdump prints out all packet headers or a specified type of header transmitting on the target network. Note that tcpdump can interfere with network operations and performance.

tcpdump works on the router’s Ethernet LAN interface located on the SP Switch Router control board (de0), and the router’s communications bus ( rmb0). The TCP Dump utility also functions on the SP Switch Router Adapter card.

To collect packet headers from an SP Switch Router Adapter card in slot 6, enter:

# tcpdump -i gt060

traceroute

This standard UNIX command prints the route that packets likely take to a destination network host. traceroute uses the ICMP/IP parameters time-to-live and time-exceeded to trace a route between two IP entities.

You can use the traceroute command to determine if packets from an SP node are actually being routed through the SP Switch Router to get to the target destination address.

SP Switch Router Adapter Guide - 1.4 Update 2

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Lucent Technologies 9076, 9077 16S, 9077 04S manual Traceroute, Grroute.conf file