Table of Contents

1 IP Performance Optimization Configuration Commands· 1-1

IP Performance Optimization Configuration Commands· 1-1

display fib· 1-1

display fib ip-address· 1-2

display icmp statistics· 1-3

display ip socket 1-4

display ip statistics· 1-7

display tcp statistics· 1-8

display tcp status· 1-11

display udp statistics· 1-11

ip redirects enable· 1-12

ip ttl-expires enable· 1-13

ip unreachables enable· 1-13

reset ip statistics· 1-14

reset tcp statistics· 1-14

reset udp statistics· 1-15

tcp timer fin-timeout 1-15

tcp timer syn-timeout 1-16

tcp window· 1-16

 

 

IP Performance Optimization Configuration Commands

display fib

Syntax

display fib [ | { begin | include | exclude } regular-expression | acl acl-number | ip-prefix ip-prefix-name ]

View

Any view

Default Level

1: Monitor level

Parameters

|: Uses a regular expression to match FIB entries. For more information about regular expression, see CLI in the Fundamentals Configuration Guide.

begin: Displays a specific FIB entry and all the FIB entries following it. The specific FIB entry is the first entry that matches the specified regular expression.

exclude: Displays the FIB entries that do not match the specified regular expression.

include: Displays the FIB entries that match the specified regular expression.

regular-expression: A case-sensitive string of 1 to 256 characters, excluding spaces.

acl acl-number: Displays FIB entries matching a specified ACL numbered from 2000 to 2999. If the specified ACL does not exist, all FIB entries are displayed.

ip-prefix ip-prefix-name: Displays FIB entries matching a specified IP prefix list, a string of 1 to 19 characters. If the specified IP prefix list does not exist, all FIB entries are displayed.

Description

Use the display fib command to display FIB entries. If no parameters are specified, all FIB entries will be displayed.

Examples

# Display all FIB entries.

<Sysname> display fib

Destination count: 4    FIB entry count: 4FIB entry count: 4

Flag:

  U:Useable   G:Gateway   H:Host   B:Blackhole   D:Dynamic   S:Static

  R:Relay

Destination/Mask  Nexthop     Flag     OutInterface  InnerLabel Token 

10.2.1.1/32       127.0.0.1   UH       InLoop0       Null       Invalid

127.0.0.0/8       127.0.0.1   U        InLoop0       Null       Invalid

127.0.0.1/32      127.0.0.1   UH       InLoop0       Null       Invalid

Table 1-1 display fib command output description

Field	Description
Destination count	Total number of destination addresses
Destination/Mask	Destination address/length of mask
Nexthop	Address of next hop
Flag	Flags of routes: l      “U”—Usable route l      “G”—Gateway route l      “H”—Host route l      “B”—Blackhole route l      “D”—Dynamic route l      “S”—Static route l      “R”—Relay route
OutInterface	Outbound interface
InnerLabel	Inner label
Token	LSP index number

 

display fib ip-address

Syntax

display fib ip-address [ mask | mask-length ]

View

Any view

Default Level

1: Monitor level

Parameters

ip-address: Destination IP address, in dotted decimal notation.

mask: IP address mask.

mask-length: Length of IP address mask.

Description

Use the display fib ip-address command to display FIB entries that match the specified destination IP address.

If no mask or mask length is specified, the FIB entry that matches the destination IP address and has the longest mask will be displayed; if the mask is specified, the FIB entry that exactly matches the specified destination IP address will be displayed.

Examples

# Display the FIB entries that match the destination IP address of 10.2.1.1.

<Sysname> display fib 10.2.1.1

Destination count: 1    FIB entry count: 1

Flag:

  U:Useable   G:Gateway   H:Host   B:Blackhole   D:Dynamic   S:Static

  R:Relay

Destination/Mask  Nexthop     Flag     OutInterface  InnerLabel Token 

10.2.1.1/32       127.0.0.1   UH       InLoop0       Null       Invalid

For description about the output, see Table 1-1.

display icmp statistics

Syntax

display icmp statistics

View

Any view

Default Level

1: Monitor level

Parameters

None

Description

Use the display icmp statistics command to display ICMP statistics.

Related commands: display ip interface (IP Addressing in the Layer 3 – IP Services Command Reference), reset ip statistics (IP Performance Optimization in the Layer 3 – IP Services Command Reference).

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 1-2 display icmp statistics command output description

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

display ip socket [ socktype sock-type ] [ task-id socket-id ]

View

Any view

Default Level

1: Monitor level

Parameters

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

task-id: Displays the socket information of this task. Task ID is in the range 1 to 150.

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

Description

Use the display ip socket command to display socket information.

Examples

# Display all 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,

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,

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,

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,

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,

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,

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,

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,

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,

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,

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,

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,

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,

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,

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,

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,

socket option = 0,

socket state = SS_PRIV SS_NBIO SS_ASYNC

Table 1-3 display ip socket command output description

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 currently in the receiving buffer
socket option	Socket option
socket state	Socket state

 

display ip statistics

Syntax

display ip statistics

View

Any view

Default Level

1: Monitor level

Parameters

None

Description

Use the display ip statistics command to display statistics of IP packets.

Related commands: display ip interface (IP Addressing in the Layer 3 – IP Services Command Reference), reset ip statistics (IP Performance Optimization in the Layer 3 – IP Services Command Reference).

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 1-4 display ip statistics command output description

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
	timeouts	Total number of reassembly timeout fragments

 

display tcp statistics

Syntax

display tcp statistics

View

Any view

Default Level

1: Monitor level

Parameters

None

Description

Use the display tcp statistics command 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 1-5 display tcp statistics command output description

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 with MD5 authentication
Packets permitted with MD5 authentication		Number of packets permitted with MD5 authentication

 

display tcp status

Syntax

display tcp status

View

Any view

Default Level

1: Monitor level

Parameters

None

Description

Use the display tcp status command to display status of all TCP connections for monitoring TCP connections.

Examples

# Display status of all TCP connections.

<Sysname> display tcp status

*: TCP MD5 Connection

TCPCB         Local Add:port      Foreign Add:port        State

03e37dc4      0.0.0.0:4001            0.0.0.0:0           Listening

04217174      100.0.0.204:23      100.0.0.253:65508   Established

Table 1-6 display tcp status command output description

Field	Description
*	If the status information of a TCP connection contains *, the TCP adopts the MD5 algorithm for authentication.
TCPCB	TCP control block
Local Add:port	Local IP address and port number
Foreign Add:port	Remote IP address and port number
State	State of the TCP connection

 

display udp statistics

Syntax

display udp statistics

View

Any view

Default Level

1: Monitor level

Parameters

None

Description

Use the display udp statistics command 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 1-7 display udp statistics command output description

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 upper layer due to socket buffer being full
	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 redirects enable

Syntax

ip redirects enable

undo ip redirects

View

System view

Default Level

2: System level

Parameters

None

Description

Use the ip redirects enable command to enable sending of ICMP redirection packets.

Use the undo ip redirects command to disable sending of ICMP redirection packets.

This feature is disabled by default.

Examples

# Enable sending of 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 the ip ttl-expires enable command to enable the sending of ICMP timeout packets.

Use the undo ip ttl-expires command to disable sending ICMP timeout packets.

Sending of ICMP timeout packets is disabled by default.

If the feature is disabled, the AP will not send TTL timeout ICMP packets, but still send “reassembly timeout” ICMP packets.

Examples

# Enable sending of 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 the ip unreachables enable command to enable the sending of ICMP destination unreachable packets.

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

Sending ICMP destination unreachable packets is disabled by default.

Examples

# Enable sending ICMP destination unreachable packets.

<Sysname> system-view

[Sysname] ip unreachables enable

reset ip statistics

Syntax

reset ip statistics

View

User view

Default Level

2: System level

Parameters

None

Description

Use the reset ip statistics command to clear statistics of IP packets.

Related commands: display ip interface (IP Addressing in the Layer 3 – IP Services Command Reference); display ip statistics (IP Performance Optimization in the Layer 3 – IP Services Command Reference).

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 the reset tcp statistics command 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 the reset udp statistics command 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, ranging from 76 to 3,600.

Description

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

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

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

Note that 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, ranging from 2 to 600.

Description

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

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

By default, the length 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: Receiving/sending buffer size of TCP connection in KB, ranging from 1 to 32.

Description

Use the tcp window command to configure the receiving/sending buffer size of TCP connection.

Use the undo tcp window command to restore the default.

The TCP receiving/sending 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