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Sun Ethernet Fabric Operating System IPv6 Administration Guide |
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Sun Ethernet Fabric Operating System IPv6 Administration Guide |
Route Redistribution Topology in IPv6
Completing Preliminary Configurations
Configure an IPv4 Address for an Interface
Configuring the Basic IPv6 Topology
Configuring the Route Redistribution Topology
Configuring IPv6 Support in an Interface
Add IPv6 Addresses to an Interface
Remove IPv6 Addresses From an Interface
Configuring IPv6 Static Routes
Configuring Static Neighbor Cache Entries
Checking a Local or Remote Endpoint
Check an Endpoint Using Default Values
Check an Endpoint Using the Link-Local Address
Configuring Router Advertisement Parameters
Configure Router Advertisement Parameters
Setting the MTU for Use in PMTU Discovery
Set the MTU for Use in PMTU Discovery
Configuring the IPv6 Route Redistribution Policy for Routing Protocols
Configure the IPv6 Route Redistribution Policy for Routing Protocols
The PMTU discovery feature enables the source node to dynamically discover the PMTU for a topology, which ensures optimal usage of network resources. PMTU discovery dynamically discovers the MTU of a path so that the packet can be sent with a size that is equal to the PMTU of the path, not a size that is equal to the IPv6 minimum link MTU. The source node assumes that the PMTU of a path is the MTU of the first hop in that path, so the node sends the packet with the assumed size. If any node along the path is not able to forward the packets due to a large size, that node discards the packet and returns ICMPv6 Packet-Too-Big messages. The source node reduces the assumed PMTU based on the MTU of the constricting node, and resends the packets. This process is iterated until an acceptable PMTU value is derived.
These procedures show how to configure PMTU discovery:
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