IXP1200 Network Processor Family ATM
4.3.3IP Table Management API
The route table is managed by the Route Table Manager (RTM), which may be used from both Transactor Scripts and VxWorks. It may be compiled and loaded as a local foreign model, thus allowing its C functions to be called from a Transactor Script. Or, it can be compiled as a VxWorks loadable object.
The API may be printed out by entering rt_help() at the command line of either VxWorks, or the Transactor simulator.
4.3.3.1route_table_init()
Initializes route table memory and data structures.
route_table_init(int sram_base_addr, int dram_base_addr)
Parameter | Description |
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sram_base_addr | The starting address of the SRAM memory allocated for route lookup entries. |
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dram_base_addr | The starting address of the DRAM memory allocated for the route table entries. |
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4.3.3.2mtu_change()
Sets the MTU for subsequent route table additions.
mtu_change(int new_mtu)
Parameter | Description |
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int new_mtu | New default MTU. |
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4.3.3.3atm_route_add()
Adds a route for ATM destination to the route table.
atm_route_add(char *dest, char *netmask,char *gateway, int port_type,int queue_index,int atm_hdr,int llc_snap_hi, int llc_snap_lo)
Parameter | Description |
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char *dest | String IP destination, e.g. "1.1.1.1" |
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char *netmask | String netmask, e.g., "255.255.0.0" |
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char *gateway | String next hop gateway, e.g., "255.255.0.0" |
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int port_type | Type of port. |
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int queue_index | Index of the output queue. |
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int atm_hdr | vpi/vci for the connection. |
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int llc_snap_hi | hi 32 bits of llc/snap header. |
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int llc_snap_lo | lo 32 bits of llc/snap header. |
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36 | Application Note |
Modified on: 3/20/02,
