Avaya Configuring Traffic Filters and Protocol Prioritization Manuale Utente Scaricare il pdf (Pagina 75)

Outbound Traffic Filter Criteria and Actions

303543-A Rev 00

4-9

IP Reference Points

Table 4-4 defines the reference points in the IP header from which you can build

user-defined criterion. Figure 4-5 shows an example of where those reference

points are located in a packet.

Figure 4-5. IP Reference Points in an IP-Encapsulated SRB Packet Bridged over PPP

Table 4-4. IP Reference Points

Reference Point Definition

HEADER_START Points to the first byte in the IP header

HEADER_END Points to the first byte following the IP header

IP_WAN_HEADER_START Points to the beginning of the header (beginning

of the packet) for PPP and Frame Relay packets

IP_WAN_HEADER_END Points to the first byte following the DLCI in a

Frame Relay packet, and the first byte following

the protocol ID in a PPP packet

IP_SR_START Points to the beginning of the SRB packet, which

is the high-order byte of the destination address

IP_SR_DATA_LINK Points to the first byte following the RIF

DSAP

DA SP RIF

SSAP CONTROL

IP_WAN_HEADER_START

IP_WAN_HEADER_END

HEADER_END

HEADER_START

IP_SR_DATA_LINK

IP_SR_START

0x3000UDP

00000003 4521

TF0010A

1 2 ... 70 71 72 73 74 75 76 77 78 79 80 ... 161 162

Nessun commento

Avaya Configuring Traffic Filters and Protocol Prioritization Manuale Utente Pagina 75