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Configuration of IP-Forwarding Media Cards 113
4.2.2 Installing Configurations or Changes
In the command line interface (CLI), use set and write commands to install
configuration parameters.
To save the /etc configuration directory, use
grwrite -v.
Additionally, when you enter configuration information or make changes, you
must also reset the media card with the command
grreset <slot_number> for
the change to take place.
4.2.3 Configuration Files and Profiles
Following are the steps to configure an ATM card. They are listed here
complete, although you can bring up an ATM connection with a subset. For
detailed information, see
GRF Configuration Guide 1.4,
GA22-7366.
Proceed as follows:
1. Identify each logical interface.
Edit grifconfig.conf, to identify each logical interface, by assigning:
• An IP address
• The GRF interface name
• A netmask, as required
• A destination or broadcast address, as required
• An MTU, if needed
See Section 4.2.4, “Assign IP Addresses - grifconfig.conf” on page 114
for the details.
2. Specify ATM card parameters in the Card profile (all optional):
• Specify ICMP throttling settings
• Specify a selective packet discard percentage in the spd-tx-thresh field
• Change run-time binaries
• Change dump variables
3. Configure PVCs and SVCs in /etc/gratm.conf.
Edit the file /etc/gratm.conf and add entries for the following keywords for
a minimum configuration:
• Traffic_Shape
• Interface
•PVC
The following screen shot shows an excerpt from our scenario: