Section 7.3, “HIPPI Backbone Connection” on page 227, describes the steps to configure the GRF’s HIPPI media card to do IP forwarding, so you have to refer to the Ascend documentation if you need to set up a different configuration.
4.5.3 Physical and Logical Interfaces
The HIPPI media card provides a single duplex attachment and operates at a speed of 100 MB/s. It requires a pair of
Physical Interfaces
The upper HIPPI interface (RCV or DESTINATION interface) receives data from a host. The lower interface (XMT or SOURCE interface) transmits data to a host.
Logical Interfaces
A logical interface is configured by its entry in the /etc/grifconfig.conf file, where it is assigned an IP address and netmask. A logical interface is uniquely identified by its HIPPI interface name.
Interface Name
The generic form of a HIPPI interface name is gh0x0. See Figure 50 for the naming conventions on the HIPPI card.
g h 0 x 0
1st: | always "g" for GRF |
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2nd: | media type, h (HIPPI) |
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3rd: | chassis number, always "0" (zero) |
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4th: | slot number in hex |
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5th: | logical interface number in hex, always "0" (zero) |
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Figure 50. Components in the HIPPI Interface Name
The interface name is used in the /etc/grifconfig.conf file to specify an IP interface. The following is an entry from our actual configuration:
#name | address | netmask | broad_dest | arguments |
gh000 | 10.50.1.2 | 255.255.255.0 | - | mtu 65280 |
Note: Interface names are case sensitive. Always use lower case letters when defining interface names.
Configuration of | 139 |
