Ipx Configuration; Ipx Address Structure; Routing Information Protocol - 3Com Switch 7700 Configuration Manual

IPX Configuration

IPX Address Structure

Routing Information
Protocol
Operations include:
<SW7700> terminal debugging
<SW7700> debugging tcp packet
The TCP packets, received or sent can be checked in real time. Specific packet
formats include:
TCP output packet:
Source IP address:202.38.160.1
Source port:1024
Destination IP Address 202.38.160.1
Destination port: 4296
Sequence number :4185089
Ack number: 0
Flag :SYN
Packet length :60
Data offset: 10
Debug and trace the packets located in SYN, FIN or RST.
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Operations include:
<SW7700> terminal debugging
<SW7700> debugging tcp transact
The TCP packets received or sent can be checked in real time, and the specific
packet formats are the same as those mentioned above.
Internetwork Packet Exchange (IPX) protocol is a network layer protocol in the
NetWare protocol suite. It is similar to IP in the TCP/IP protocol suite. IPX functions
to address, route and forward packets.
IPX is a connectionless protocol. Though an IPX packet includes a destination IPX
address in addition to the data, there is no guarantee of successful delivery. Packet
acknowledgement and connection control must be provided by protocols above
IPX. Each IPX packet is considered an independent entity that has no logical or
sequential relationship with any other IPX packets.
IPX and IP use different address structures. An IPX address comprises two parts:
the network number and the node address; it is in the format of network.node.
A network number identifies the network where a site is located. It is four bytes
long and expressed by eight hexadecimal numbers. A node address identifies a
node on the network. Like a MAC address, it is six bytes long and written with the
bytes being separated into three 2-byte parts by "-". The node address cannot be
a broadcast or multicast address. For example, in the IPX address bc.0-0cb-47, bc
(or 000000bc) is the network number and 0-0cb-47 (0000-00cb-0047) is the node
address. You can also write an IPX address in the form of N.H-H-H, where N is the
network number and H-H-H is the node address.
IPX uses the Routing Information Protocol (RIP) to maintain and advertise dynamic
routing information. With IPX enabled, the switch exchanges routing information
with other neighbors through RIP to maintain an internetwork routing information
database (also known as a routing table) to accommodate to the network
changes. When the switch receives a packet, it looks up the routing table for the
IPX Configuration 71