User guide

September 2009
Page 34 of 79 OmniSwitch 6400/6850/6855/9000/9000E—Release 6.4.2.R01
switches are adjacent to it by sending and responding to Hello update packets. For the purposes of
AMAP, adjacent switches are those that:
• Have a Spanning Tree path between them
• Do not have any switch between them on the Spanning Tree path that has AMAP enabled
IPv4 Support
Internet Protocol (IP) is a network-layer (Layer 3) protocol that contains addressing and control
information that allow packets to be forwarded on a network. IP is the primary network-layer protocol
in the Internet protocol suite. Along with the Transmission Control Protocol (TCP), IP represents the
heart of the Internet protocols. IP is associated with several Layer 3 and Layer 4 protocols. These
protocols are built into the base code loaded on the switch and they include:
• Transmission Control Protocol (TCP)
• User Datagram Protocol (UDP)
• Bootstrap Protocol (BOOTP)/Dynamic Host Configuration Protocol (DHCP)
• Simple Network Management Protocol (SNMP)
• Telnet - Client and server
• File Transfer Protocol (FTP) – Client and server
• Address Resolution Protocol (ARP)
• Internet Control Message Protocol (ICMP)
• RIP I / RIP II
• Static Routes
The base IP software allows one to configure an IP router interface, static routes, a default route, the
Address Resolution Protocol (ARP), the router primary address, the router ID, the Time-to-Live (TTL)
Value, IP-directed broadcasts, and the Internet Control Message Protocol (ICMP). In addition, this
software allows one to trace an IP route, display Transmission Control Protocol (TCP) information,
and display User Datagram Protocol (UDP) information.
IPv6 Support
IPv6 (documented in RFC 2460) is designed as a successor to IPv4 and is supported on the
OmniSwitch 6850, 6855 and 9000/9000E. The changes from IPv4 to IPv6 fall primarily into the
following categories:
• Address size increased from 32 bits (IPv4) to 128 bits (IPv6)
• Dual Stack IPv4/IPv6
• ICMPv6
• Neighbor Discovery
• Stateless Autoconfiguration
• OSPFv3
• RIPng
• Static Routes
• Tunneling: Configured and 6-to-4 dynamic tunneling