3Com 4210 PWR Configuration Manual page 539

Configuring the
Maximum Number of
IPv6 ICMP Error Packets
Sent within a Specified
Time
Configuring IPv6 DNS
Table 395 Configure IPv6 TCP properties
To do...
Set the finwait timer of IPv6 TCP
packets
Set the synwait timer of IPv6 TCP
packets
Configure the size of IPv6 TCP
receiving/sending buffer
If too many IPv6 ICMP error packets are sent within a short time in a network,
network congestion may occur. To avoid network congestion, you can control the
maximum number of IPv6 ICMP error packets sent within a specified time.
Currently, the token bucket algorithm is adopted.
You can set the capacity of a token bucket, namely, the number of tokens in the
bucket. In addition, you can set the update period of the token bucket, namely,
the interval for updating the number of tokens in the token bucket to the
configured capacity. One token allows one IPv6 ICMP error packet to be sent. Each
time an IPv6 ICMP error packet is sent, the number of tokens in a token bucket
decreases by 1. If the number of the IPv6 ICMP error packets that are continuously
sent out reaches the capacity of the token bucket, the subsequent IPv6 ICMP error
packets cannot be sent out until new tokens are put into the token bucket based
on the specified update frequency.
Table 396 Configure the maximum number of IPv6 ICMP error packets sent within a
specified time
To do...
Enter system view
Configure the maximum
number of IPv6 ICMP error
packets sent within a specified
time
Configure a static host name to IPv6 address mapping
You can directly use a host name when applying telnet applications and the
system will resolve the host name into an IPv6 address. Each host name can
correspond to one IPv6 address.
Table 397 Configure a static host name to IPv6 address mapping
To do...
Enter system view
Configure a static host name to IPv6
address mapping
IPv6 Configuration Task List
Use the command...
tcp ipv6 timer
fin-timeout wait-time
tcp ipv6 timer
syn-timeout wait-time
tcp ipv6 window size
Use the command...
system-view
ipv6 icmp-error { bucket
bucket-size | ratelimit
interval }*
Use the command...
system-view
ipv6 host hostname ipv6-address
537
Remarks
Optional
675 seconds by default
Optional
75 seconds by default
Optional
8 KB by default
Remarks
-
Optional
By default, the capacity of a
token bucket is 10 and the
update period to 100
milliseconds. That is, at most
10 IPv6 ICMP error packets
can be sent within an update
period.
Remarks
-
Required