3Com 4500 - Configuring a Static Ipv6 Route; Configuring Ipv6 TCP Properties

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Configuring the NS Interval
After a device sends an NS message, if it does not receive a response within a specific period, the
device will send another NS message. You can configure the interval for sending NS messages.
Follow these steps to configure the NS interval:
To do… Use the command… Remarks
Enter system view
system-view
—
Enter VLAN interface view
interface interface-type
interface-number
—
Specify the NS interval
ipv6 nd ns retrans-timer
value
Optional
1,000 milliseconds by default.
Configuring the neighbor reachable timeout time on an interface
After a neighbor passed the reachability detection, the device considers the neighbor to be reachable in
a specific period. However, the device will examine whether the neighbor is reachable again when there
is a need to send packets to the neighbor after the neighbor reachable timeout time elapsed.
Follow these steps to configure the neighbor reachable timeout time on an interface:
To do… Use the command… Remarks
Enter system view
system-view
—
Enter VLAN interface view
interface interface-type
interface-number
—
Configure the neighbor
reachable timeout time
ipv6 nd nud reachable-time
value
Optional
30,000 milliseconds by default.
Configuring a Static IPv6 Route
You can configure static IPv6 routes for network interconnection in a small sized IPv6 network.
Follow these steps to configure a static IPv6 route:
To do… Use the command… Remarks
Enter system view
system-view
—
Configure a static IPv6 route
ipv6 route-static ipv6-address
prefix-length [ interface-type
interface-number]
nexthop-address
Required
By default, no static IPv6 route
is configured.
Configuring IPv6 TCP Properties
The IPv6 TCP properties you can configure include:
z synwait timer: When a SYN packet is sent, the synwait timer is triggered. If no response packet is
received before the synwait timer expires, the IPv6 TCP connection establishment fails.
z finwait timer: When the IPv6 TCP connection status is FIN_WAIT_2, the finwait timer is triggered. If
no packet is received before the finwait timer expires, the IPv6 TCP connection is terminated. If FIN