chassis chassis-number slot slot-number: Displays the ICMP statistics of a card on an IRF member switch. The chassis-number argument takes the ID of the IRF member switch. The slot-number argument specifies the number of the slot where the card resides. (In IRF mode.)

|: Filters command output by specifying a regular expression. For more information about regular expressions, see Fundamentals Configuration Guide.

begin: Displays the first line that matches the specified regular expression and all lines that follow.

include: Displays all lines that match the specified regular expression.

regular-expression: Specifies a regular expression, a case-sensitive string of 1 to 256 characters.

Description

Use display icmp statistics to display ICMP statistics.

Related commands: display ip interface and reset ip statistics.

Examples

# Display ICMP statistics.

<Sysname> display icmp statistics

Input: bad formats 0 bad checksum 0

echo 5 destination unreachable 0

source quench 0 redirects 0

echo reply 10 parameter problem 0

timestamp 0 information request 0

mask requests 0 mask replies 0

time exceeded 0

Output:echo 10 destination unreachable 0

source quench 0 redirects 0

echo reply 5 parameter problem 0

timestamp 0 information reply 0

mask requests 0 mask replies 0

time exceeded 0

Table 1 Command output

Field	Description
bad formats	Number of input wrong format packets.
bad checksum	Number of input wrong checksum packets.
echo	Number of input/output echo packets.
destination unreachable	Number of input/output destination unreachable packets.
source quench	Number of input/output source quench packets.
redirects	Number of input/output redirection packets.
echo reply	Number of input/output replies.
parameter problem	Number of input/output parameter problem packets.
timestamp	Number of input/output time stamp packets.
information request	Number of input information request packets.
mask requests	Number of input/output mask requests.
mask replies	Number of input/output mask replies.
information reply	Number of output information reply packets.
time exceeded	Number of input/output expiration packets.

display ip socket

Syntax

In standalone mode:

display ip socket [ socktype sock-type ] [ task-id socket-id ] [ slot slot-number ] [ | { begin | exclude | include } regular-expression ]

In IRF mode:

display ip socket [ socktype sock-type ] [ task-id socket-id ] [ chassis chassis-number slot slot-number ] [ | { begin | exclude | include } regular-expression ]

View

Any view

Default level

1: Monitor level

Parameters

socktype sock-type: Displays socket information about this type. The sock type is in the range of 1 to 3, corresponding to TCP, UDP, and raw IP respectively.

task-id: Displays socket information about this task. Task ID is in the range of 1 to 180.

socket-id: Displays information about the socket. Socket ID is in the range of 0 to 3072.

slot slot-number: Displays socket information about the specified card. (In standalone mode.)

chassis chassis-number slot slot-number: Displays socket information about a card on an IRF member device. The chassis-number argument refers to the ID of the IRF member device. The slot-number argument refers to the number of the slot where the card resides. (In IRF mode.)

|: Filters command output by specifying a regular expression. For more information about regular expressions, see Fundamentals Configuration Guide.

begin: Displays the first line that matches the specified regular expression and all lines that follow.

include: Displays all lines that match the specified regular expression.

regular-expression: Specifies a regular expression, a case-sensitive string of 1 to 256 characters.

Description

Use display ip socket to display socket information.

Examples

# Display TCP socket information.

<Sysname> display ip socket

SOCK_STREAM:

Task = VTYD(38), socketid = 1, Proto = 6,

LA = 0.0.0.0:23, FA = 0.0.0.0:0,

sndbuf = 8192, rcvbuf = 8192, sb_cc = 0, rb_cc = 0,

sb_maxcc = 0, rb_maxcc = 0,

socket option = SO_ACCEPTCONN SO_KEEPALIVE SO_REUSEPORT SO_SENDVPNID(3073) SO_SETKEEPALIVE,

socket state = SS_PRIV SS_ASYNC

Task = HTTP(36), socketid = 1, Proto = 6,

LA = 0.0.0.0:80, FA = 0.0.0.0:0,

sndbuf = 8192, rcvbuf = 8192, sb_cc = 0, rb_cc = 0,

sb_maxcc = 0, rb_maxcc = 0,

socket option = SO_ACCEPTCONN SO_REUSEPORT,

socket state = SS_PRIV SS_NBIO

Task = ROUT(69), socketid = 10, Proto = 6,

LA = 0.0.0.0:179, FA = 192.168.1.45:0,

sndbuf = 8192, rcvbuf = 8192, sb_cc = 0, rb_cc = 0,

sb_maxcc = 0, rb_maxcc = 0,

socket option = SO_ACCEPTCONN SO_REUSEADDR SO_REUSEPORT SO_SENDVPNID(0),

socket state = SS_PRIV SS_ASYNC

Task = VTYD(38), socketid = 4, Proto = 6,

LA = 192.168.1.40:23, FA = 192.168.1.52:1917,

sndbuf = 8192, rcvbuf = 8192, sb_cc = 237, rb_cc = 0,

sb_maxcc = 0, rb_maxcc = 0,

socket option = SO_KEEPALIVE SO_OOBINLINE SO_REUSEPORT SO_SENDVPNID(0) SO_SETKEEPALIVE,

socket state = SS_ISCONNECTED SS_PRIV SS_ASYNC

Task = VTYD(38), socketid = 3, Proto = 6,

LA = 192.168.1.40:23, FA = 192.168.1.84:1503,

sndbuf = 8192, rcvbuf = 8192, sb_cc = 0, rb_cc = 0,

sb_maxcc = 0, rb_maxcc = 0,

socket option = SO_KEEPALIVE SO_OOBINLINE SO_REUSEPORT SO_SENDVPNID(0) SO_SETKEEPALIVE,

socket state = SS_ISCONNECTED SS_PRIV SS_ASYNC

Task = ROUT(69), socketid = 11, Proto = 6,

LA = 192.168.1.40:1025, FA = 192.168.1.45:179,

sndbuf = 8192, rcvbuf = 8192, sb_cc = 0, rb_cc = 0,

sb_maxcc = 0, rb_maxcc = 0,

socket option = SO_REUSEADDR SO_LINGER SO_SENDVPNID(0),

socket state = SS_ISCONNECTED SS_PRIV SS_ASYNC

SOCK_DGRAM:

Task = NTPT(37), socketid = 1, Proto = 17,

LA = 0.0.0.0:123, FA = 0.0.0.0:0,

sndbuf = 9216, rcvbuf = 41600, sb_cc = 0, rb_cc = 0,

sb_maxcc = 0, rb_maxcc = 0,

socket option = SO_UDPCHECKSUM SO_SENDVPNID(3073),

socket state = SS_PRIV

Task = AGNT(51), socketid = 1, Proto = 17,

LA = 0.0.0.0:161, FA = 0.0.0.0:0,

sndbuf = 9216, rcvbuf = 41600, sb_cc = 0, rb_cc = 0,

sb_maxcc = 0, rb_maxcc = 0,

socket option = SO_UDPCHECKSUM SO_SENDVPNID(3073),

socket state = SS_PRIV SS_NBIO SS_ASYNC

Task = RDSO(56), socketid = 1, Proto = 17,

LA = 0.0.0.0:1024, FA = 0.0.0.0:0,

sndbuf = 9216, rcvbuf = 41600, sb_cc = 0, rb_cc = 0,

sb_maxcc = 0, rb_maxcc = 0,

socket option = SO_UDPCHECKSUM,

socket state = SS_PRIV

Task = TRAP(52), socketid = 1, Proto = 17,

LA = 0.0.0.0:1025, FA = 0.0.0.0:0,

sndbuf = 9216, rcvbuf = 0, sb_cc = 0, rb_cc = 0,

sb_maxcc = 0, rb_maxcc = 0,

socket option = SO_UDPCHECKSUM,

socket state = SS_PRIV

Task = RDSO(56), socketid = 2, Proto = 17,

LA = 0.0.0.0:1812, FA = 0.0.0.0:0,

sndbuf = 9216, rcvbuf = 41600, sb_cc = 0, rb_cc = 0,

sb_maxcc = 0, rb_maxcc = 0,

socket option = SO_UDPCHECKSUM,

socket state = SS_PRIV

SOCK_RAW:

Task = ROUT(69), socketid = 8, Proto = 89,

LA = 0.0.0.0, FA = 0.0.0.0,

sndbuf = 262144, rcvbuf = 262144, sb_cc = 0, rb_cc = 0,

sb_maxcc = 0, rb_maxcc = 0,

socket option = SO_SENDVPNID(0) SO_RCVVPNID(0),

socket state = SS_PRIV SS_ASYNC

Task = ROUT(69), socketid = 3, Proto = 2,

LA = 0.0.0.0, FA = 0.0.0.0,

sndbuf = 32767, rcvbuf = 256000, sb_cc = 0, rb_cc = 0,

sb_maxcc = 0, rb_maxcc = 0,

socket option = SO_SENDVPNID(0) SO_RCVVPNID(0),

socket state = SS_PRIV SS_NBIO SS_ASYNC

Task = ROUT(69), socketid = 2, Proto = 103,

LA = 0.0.0.0, FA = 0.0.0.0,

sndbuf = 65536, rcvbuf = 256000, sb_cc = 0, rb_cc = 0,

sb_maxcc = 0, rb_maxcc = 0,

socket option = SO_SENDVPNID(0) SO_RCVVPNID(0),

socket state = SS_PRIV SS_NBIO SS_ASYNC

Task = ROUT(69), socketid = 1, Proto = 65,

LA = 0.0.0.0, FA = 0.0.0.0,

sndbuf = 32767, rcvbuf = 256000, sb_cc = 0, rb_cc = 0,

sb_maxcc = 0, rb_maxcc = 0,

socket option = 0,

socket state = SS_PRIV SS_NBIO SS_ASYNC

Task = RSVP(73), socketid = 1, Proto = 46,

LA = 0.0.0.0, FA = 0.0.0.0,

sndbuf = 4194304, rcvbuf = 4194304, sb_cc = 0, rb_cc = 0,

sb_maxcc = 0, rb_maxcc = 0,

socket option = 0,

socket state = SS_PRIV SS_NBIO SS_ASYNC

Table 2 Command output

Field	Description
SOCK_STREAM	TCP socket.
SOCK_DGRAM	UDP socket.
SOCK_RAW	Raw IP socket.
Task	Task number.
socketid	Socket ID.
Proto	Protocol number of the socket, indicating the protocol type that IP carries.
LA	Local address and local port number.
FA	Remote address and remote port number.
sndbuf	Sending buffer size of the socket, in bytes.
rcvbuf	Receiving buffer size of the socket, in bytes.
sb_cc	Current data size in the sending buffer. (It is available only for TCP that can buffer data.)
rb_cc	Data size in the receiving buffer.
socket option	Socket option.
sb_maxcc	Historical maximum of data size in the sending buffer.
rb_maxcc	Historical maximum of data size in the receiving buffer.
socket state	Socket state.

display ip statistics

Syntax

In standalone mode:

display ip statistics [ slot slot-number ] [ | { begin | exclude | include } regular-expression ]

In IRF mode:

display ip statistics [ chassis chassis-number slot slot-number ] [ | { begin | exclude | include } regular-expression ]

View

Any view

Default level

1: Monitor level

Parameters

slot slot-number: Displays statistics of IP packets on the specified slot. (In standalone mode.)

chassis chassis-number slot slot-number: Displays the IP packet statistics of a card on an IRF member device. The chassis-number argument refers to the ID of the IRF member device. The slot-number argument refers to the number of the slot where the card resides. (In IRF mode.)

|: Filters command output by specifying a regular expression. For more information about regular expressions, see Fundamentals Configuration Guide.

begin: Displays the first line that matches the specified regular expression and all lines that follow.

include: Displays all lines that match the specified regular expression.

regular-expression: Specifies a regular expression, a case-sensitive string of 1 to 256 characters.

Description

Use display ip statistics to display statistics of IP packets.

Related commands: display ip interface and reset ip statistics.

Examples

# Display statistics of IP packets.

<Sysname> display ip statistics

Input: sum 7120 local 112

bad protocol 0 bad format 0

bad checksum 0 bad options 0

Output: forwarding 0 local 27

dropped 0 no route 2

compress fails 0

Fragment:input 0 output 0

dropped 0

fragmented 0 couldn't fragment 0

Reassembling:sum 0 timeouts 0

Table 3 Command output

Field		Description
Input	sum	Total number of packets received.
	local	Total number of packets with destination being local.
	bad protocol	Total number of unknown protocol packets.
	bad format	Total number of packets with incorrect format.
	bad checksum	Total number of packets with incorrect checksum.
	bad options	Total number of packets with incorrect option.
Output	forwarding	Total number of packets forwarded.
	local	Total number of packets sent from the local.
	dropped	Total number of packets discarded.
	no route	Total number of packets for which no route is available.
	compress fails	Total number of packets failed to be compressed.
Fragment	input	Total number of fragments received.
	output	Total number of fragments sent.
	dropped	Total number of fragments dropped.
	fragmented	Total number of packets successfully fragmented.
	couldn't fragment	Total number of packets that failed to be fragmented.
Reassembling	sum	Total number of packets reassembled.
Reassembling	timeouts	Total number of reassembly timeout fragments.

display tcp statistics

Syntax

display tcp statistics [ | { begin | exclude | include } regular-expression ]

View

Any view

Default level

1: Monitor level

Parameters

|: Filters command output by specifying a regular expression. For more information about regular expressions, see Fundamentals Configuration Guide.

begin: Displays the first line that matches the specified regular expression and all lines that follow.

include: Displays all lines that match the specified regular expression.

regular-expression: Specifies a regular expression, a case-sensitive string of 1 to 256 characters.

Description

Use display tcp statistics to display statistics of TCP traffic.

Related commands: display tcp status and reset tcp statistics.

Examples

# Display statistics of TCP traffic.

<Sysname> display tcp statistics

Received packets:

Total: 8457

packets in sequence: 3660 (5272 bytes)

window probe packets: 0, window update packets: 0

checksum error: 0, offset error: 0, short error: 0

duplicate packets: 1 (8 bytes), partially duplicate packets: 0 (0 bytes)

out-of-order packets: 17 (0 bytes)

packets of data after window: 0 (0 bytes)

packets received after close: 0

ACK packets: 4625 (141989 bytes)

duplicate ACK packets: 1702, too much ACK packets: 0

Sent packets:

Total: 6726

urgent packets: 0

control packets: 21 (including 0 RST)

window probe packets: 0, window update packets: 0

data packets: 6484 (141984 bytes) data packets retransmitted: 0 (0 bytes)

ACK-only packets: 221 (177 delayed)

Retransmitted timeout: 0, connections dropped in retransmitted timeout: 0

Keepalive timeout: 1682, keepalive probe: 1682, Keepalive timeout, so connections disconnected : 0

Initiated connections: 0, accepted connections: 22, established connections: 22

Closed connections: 49 (dropped: 0, initiated dropped: 0)

Packets dropped with MD5 authentication: 0

Packets permitted with MD5 authentication: 0

Table 4 Command output

Field		Description
Received packets	Total	Total number of packets received.
	packets in sequence	Number of packets arriving in sequence.
	window probe packets	Number of window probe packets received.
	window update packets	Number of window update packets received.
	checksum error	Number of checksum error packets received.
	offset error	Number of offset error packets received.
	short error	Number of received packets with length being too small.
	duplicate packets	Number of completely duplicate packets received.
	partially duplicate packets	Number of partially duplicate packets received.
	out-of-order packets	Number of out-of-order packets received.
	packets of data after window	Number of packets outside the receiving window.
	packets received after close	Number of packets that arrived after connection is closed.
	ACK packets	Number of ACK packets received.
	duplicate ACK packets	Number of duplicate ACK packets received.
	too much ACK packets	Number of ACK packets for data unsent.
Sent packets	Total	Total number of packets sent.
	urgent packets	Number of urgent packets sent.
	control packets	Number of control packets sent.
	window probe packets	Number of window probe packets sent, in the brackets are resent packets.
	window update packets	Number of window update packets sent.
	data packets	Number of data packets sent.
	data packets retransmitted	Number of data packets retransmitted.
	ACK-only packets	Number of ACK packets sent, in brackets are delayed ACK packets.
Retransmitted timeout		Number of retransmission timer timeouts.
connections dropped in retransmitted timeout		Number of connections broken due to retransmission timeouts.
Keepalive timeout		Number of keepalive timer timeouts.
keepalive probe		Number of keepalive probe packets sent.
Keepalive timeout, so connections disconnected		Number of connections broken due to timeout of the keepalive timer.
Initiated connections		Number of connections initiated.
accepted connections		Number of connections accepted.
established connections		Number of connections established.
Closed connections		Number of connections closed, in brackets are connections closed accidentally (before receiving SYN from the peer) and connections closed initiatively (after receiving SYN from the peer).
Packets dropped with MD5 authentication		Number of packets dropped by MD5 authentication.
Packets permitted with MD5 authentication		Number of packets permitted by MD5 authentication.

display udp statistics

Syntax

display udp statistics [ | { begin | exclude | include } regular-expression ]

View

Any view

Default level

1: Monitor level

Parameters

|: Filters command output by specifying a regular expression. For more information about regular expressions, see Fundamentals Configuration Guide.

begin: Displays the first line that matches the specified regular expression and all lines that follow.

include: Displays all lines that match the specified regular expression.

regular-expression: Specifies a regular expression, a case-sensitive string of 1 to 256 characters.

Description

Use display udp statistics to display statistics of UDP packets.

Related commands: reset udp statistics.

Examples

# Display statistics of UDP packets.

<Sysname> display udp statistics

Received packets:

Total: 0

checksum error: 0

shorter than header: 0, data length larger than packet: 0

unicast(no socket on port): 0

broadcast/multicast(no socket on port): 0

not delivered, input socket full: 0

input packets missing pcb cache: 0

Sent packets:

Total: 0

Table 5 Command output

Field		Description
Received packets	Total	Total number of UDP packets received.
	checksum error	Total number of packets with incorrect checksum.
	shorter than header	Number of packets with data shorter than head.
	data length larger than packet	Number of packets with data longer than packet.
	unicast(no socket on port)	Number of unicast packets with no socket on port.
	broadcast/multicast(no socket on port)	Number of broadcast/multicast packets without socket on port.
	not delivered, input socket full	Number of packets not delivered to an upper layer due to a full socket cache.
	input packets missing pcb cache	Number of packets without matching protocol control block (PCB) cache.
Sent packets	Total	Total number of UDP packets sent.

ip forward-broadcast

Syntax

ip forward-broadcast [ acl acl-number ]

undo ip forward-broadcast

View

Interface view

Default level

2: System level

Parameters

acl acl-number: Access control list number. Only directed broadcasts permitted by the ACL can be forwarded. This option is not supported by the switch.

Description

Use ip forward-broadcast to enable the interface to forward directed broadcasts to a directly-connected network.

Use undo ip forward-broadcast to disable the interface from forwarding directed broadcasts to a directly-connected network.

By default, the switch is disabled from forwarding directed broadcasts to a directly-connected network but it can receive directed broadcasts destined for the directly connected network.

You can enable forwarding of directed broadcasts on the VLAN interface only. Although you can enable this feature on a Super-VLAN interface, the switch cannot forward directed broadcasts.

After this feature is enabled on an interface, the switch automatically generates a forwarding entry for the network segment where the interface is located. H3C recommends not configuring a static ARP entry or a static route for the corresponding network segment. For example, if an interface on network segment 10.0.0.1/24 has this feature enabled, the switch generates a forwarding entry of 10.0.0.255/32. If a static ARP entry for 10.0.0.255 is configured, a configuration conflict occurs and logs might be generated. If such a conflict occurs, you must delete both the static ARP entry and the directed broadcast configuration, and reconfigure forwarding of directed broadcasts or a static ARP entry. After that, the service resumes.

The link status and protocol status of the interface must be up for it to forward directed broadcasts.

Examples

# Allow VLAN-interface 2 to forward directed broadcasts.

<Sysname> system-view

[Sysname] interface vlan-interface 2

[Sysname-Vlan-interface2] ip forward-broadcast

ip icmp flow-control

Syntax

ip icmp flow-control

undo ip icmp flow-control

View

System view

Default level

2: System level

Parameters

None

Description

Use ip icmp flow-control to enable ICMP flow control.

Use undo ip icmp flow-control to disable ICMP flow control.

By default, ICMP flow control is disabled.

Examples

# Enable ICMP flow control.

<Sysname> system-view

[Sysname] ip icmp flow-control

ip icmp-extensions

Syntax

ip icmp-extensions { compliant | non-compliant }

undo ip icmp-extensions

View

System view

Default level

2: System level

Parameters

compliant: Specifies the compliant mode.

non-compliant: Specifies the non-compliant mode.

Description

Use ip icmp-extensions to enable support for ICMP extensions.

Use undo ip icmp-extensions to disable support for ICMP extensions.

By default, ICMP extensions are not supported.

Examples

# Enable support for ICMP extensions in compliant mode.

<Sysname> system-view

[Sysname] ip icmp-extensions compliant

ip redirects enable

Syntax

ip redirects enable

undo ip redirects

View

System view

Default level

2: System level

Parameters

None

Description

Use ip redirects enable to enable sending ICMP redirection packets.

Use undo ip redirects to disable sending ICMP redirection packets.

By default, the switch is disabled from sending ICMP redirection packets.

You can configure this command only on the VLAN interfaces of an Ethernet interface card.

Examples

# Enable sending ICMP redirect packets.

<Sysname> system-view

[Sysname] ip redirects enable

ip ttl-expires enable

Syntax

ip ttl-expires enable

undo ip ttl-expires

View

System view

Default level

2: System level

Parameters

None

Description

Use ip ttl-expires enable to enable sending ICMP timeout packets, and allow sending packets whose TTL value is 1 to CPU.

Use undo ip ttl-expires to disable sending ICMP timeout packets, and enable dropping packets whose TTL value is 1.

By default, the switch is disabled from sending ICMP timeout packets and discards packets with a TTL of 1.

If the feature is disabled, the switch will not send TTL timeout ICMP packets, but still send "reassembly timeout" ICMP packets.

Examples

# Enable sending ICMP timeout packets.

<Sysname> system-view

[Sysname] ip ttl-expires enable

ip unreachables enable

Syntax

ip unreachables enable

undo ip unreachables

View

System view

Default level

2: System level

Parameters

None

Description

Use ip unreachables enable to enable sending ICMP destination unreachable packets.

Use undo ip unreachables enable to disable sending ICMP destination unreachable packets.

By default, the switch is disabled from sending ICMP destination unreachable packets.

A switch sends ICMP destination unreachable packets when one of the following conditions occurs:

· If a packet is destined for the switch but the transport layer protocol of the packet is not supported by the switch, the switch sends the source a Protocol Unreachable ICMP error packet.

· If a UDP packet is destined for the switch but the packet's port number does not match the running process, the switch sends the source a Port Unreachable ICMP error packet.

Examples

# Enable sending ICMP destination unreachable packets.

<Sysname> system-view

[Sysname] ip unreachables enable

reset ip statistics

Syntax

In standalone mode:

reset ip statistics [ slot slot-number ]

In IRF mode:

reset ip statistics [ chassis chassis-number slot slot-number ]

View

User view

Default level

2: System level

Parameters

slot slot-number: Clears IP packet statistics on the specified slot. (In standalone mode.)

chassis chassis-number slot slot-number: Clears the IP packet statistics on the specified card of the specified member device. The argument chassis-number refers to the ID of the IRF member device. The argument slot-number refers to the slot number of the specified card. (In IRF mode.)

Description

Use reset ip statistics to clear statistics of IP packets.

Related commands: display ip interface and display ip statistics.

Examples

# Clear statistics of IP packets.

<Sysname> reset ip statistics

reset tcp statistics

Syntax

reset tcp statistics

View

User view

Default level

2: System level

Parameters

None

Description

Use reset tcp statistics to clear statistics of TCP traffic.

Related commands: display tcp statistics.

Examples

# Display statistics of TCP traffic.

<Sysname> reset tcp statistics

reset udp statistics

Syntax

reset udp statistics

View

User view

Default level

2: System level

Parameters

None

Description

Use reset udp statistics to clear statistics of UDP traffic.

Examples

# Display statistics of UDP traffic.

<Sysname> reset udp statistics

tcp timer fin-timeout

Syntax

tcp timer fin-timeout time-value

undo tcp timer fin-timeout

View

System view

Default level

2: System level

Parameters

time-value: Length of the TCP finwait timer in seconds, in the range of 76 to 3600.

Description

Use tcp timer fin-timeout to configure the length of the TCP finwait timer.

Use undo tcp timer fin-timeout to restore the default.

By default, the length of the TCP finwait timer is 675 seconds.

The actual length of the finwait timer is determined by the following formula:

Actual length of the finwait timer = (Configured length of the finwait timer – 75) + configured length of the synwait timer

Related commands: tcp timer syn-timeout and tcp window.

Examples

# Set the length of the TCP finwait timer to 800 seconds.

<Sysname> system-view

[Sysname] tcp timer fin-timeout 800

tcp timer syn-timeout

Syntax

tcp timer syn-timeout time-value

undo tcp timer syn-timeout

View

System view

Default level

2: System level

Parameters

time-value: Length of the TCP finwait timer in seconds, in the range of 2 to 600.

Description

Use tcp timer syn-timeout to configure the length of the TCP synwait timer.

Use undo tcp timer syn-timeout to restore the default.

By default, the value of the TCP synwait timer is 75 seconds.

Related commands: tcp timer fin-timeout and tcp window.

Examples

# Set the length of the TCP synwait timer to 80 seconds.

<Sysname> system-view

[Sysname] tcp timer syn-timeout 80

tcp window

Syntax

tcp window window-size

undo tcp window

View

System view

Default level

2: System level

Parameters

window-size: Size of the send/receive buffer in KB, in the range of 1 to 32.

Description

Use tcp window to configure the size of the TCP send/receive buffer.

Use undo tcp window to restore the default.

The size of the TCP send/receive buffer is 8 KB by default.

Related commands: tcp timer fin-timeout and tcp timer syn-timeout.

Examples

# Configure the receiving/sending buffer of TCP connection as 3 KB.

<Sysname> system-view

[Sysname] tcp window 3

06-Layer 3 - IP Services Command Reference

display icmp statistics

display ip statistics

reset tcp statistics

tcp timer fin-timeout

tcp timer syn-timeout

tcp window

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