Command Manual – IP Address and Performance Configuration
H3C S3100-52P Ethernet Switch Table of Contents
i
Table of Contents
Chapter 1 IP Address Configuration Commands....................................................................... 1-1
1.1 IP Address Configuration Commands...............................................................................1-1
1.1.1 display ip interface ..................................................................................................1-1
1.1.2 ip address................................................................................................................1-3
Chapter 2 IP Performance Configuration Commands...............................................................2-1
2.1 IP Performance Configuration Commands........................................................................ 2-1
2.1.1 display fib ................................................................................................................ 2-1
2.1.2 display fib ip-address ..............................................................................................2-2
2.1.3 display fib acl........................................................................................................... 2-3
2.1.4 display fib | ..............................................................................................................2-4
2.1.5 display fib ip-prefix ..................................................................................................2-5
2.1.6 display fib statistics .................................................................................................2-6
2.1.7 display icmp statistics..............................................................................................2-6
2.1.8 display ip socket......................................................................................................2-8
2.1.9 display ip statistics ..................................................................................................2-9
2.1.10 display tcp statistics ............................................................................................2-11
2.1.11 display tcp status.................................................................................................2-13
2.1.12 display udp statistics...........................................................................................2-14
2.1.13 ip forward-broadcast ...........................................................................................2-16
2.1.14 reset ip statistics..................................................................................................2-16
2.1.15 reset tcp statistics................................................................................................2-17
2.1.16 reset udp statistics .............................................................................................. 2-17
2.1.17 tcp timer fin-timeout.............................................................................................2-18
2.1.18 tcp timer syn-timeout........................................................................................... 2-18
2.1.19 tcp window...........................................................................................................2-19
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H3C S3100-52P Ethernet Switch
Chapter 1 IP Address Configuration
Commands
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Chapter 1 IP Address Configuration Commands
1.1 IP Address Configuration Commands
1.1.1 display ip interface
Syntax
display ip interface [ brief [ interface-type [ interface-number ] ] | [ interface-type
interface-number ] ]
View
Any view
Parameter
interface-type interface-number: interface-type indicates a port type and
interface-number indicates a port number. For details, see the description of the
interface command in Port Basic Configuration part of this manual.
brief: Displays the basic interface configuration information.
Description
Use the display ip interface command to display information about one specific or all
interfaces.
Example
# Display information about VLAN-interface1.
<H3C> display ip interface Vlan-interface 1
Vlan-interface1 current state :UP
Line protocol current state :UP
Internet Address is 192.168.0.39/24 Primary
Broadcast address : 192.168.0.255
The Maximum Transmit Unit : 1500 bytes
IP packets input number: 9678, bytes: 475001, multicasts: 7
IP packets output number: 8622, bytes: 391084, multicasts: 0
TTL invalid packet number: 0
ICMP packet input number: 0
Echo reply: 0
Unreachable: 0
Source quench: 0
Routing redirect: 0
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Echo request: 0
Router advert: 0
Router solicit: 0
Time exceed: 0
IP header bad: 0
Timestamp request: 0
Timestamp reply: 0
Information request: 0
Information reply: 0
Netmask request: 0
Netmask reply: 0
Unknown type: 0
Table 1-1 Description on the fields of the display ip interface command
Field Description
Vlan-interface1 current state Current state of VLAN interface 1
Line protocol current state Current state of the Line protocol
Internet Address IP address
Broadcast address Broadcast address
The Maximum Transmit Unit Max transmit unit
IP packets input number: 9678, bytes:
475001, multicasts: 7
IP packets output number: 8622, bytes:
391084, multicasts: 0
Number of input/output unicast
packets, bytes, and multicast packets
TTL invalid packet number
Number of received invalid TTL
packets
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Field Description
ICMP packet input number: 0
Echo reply: 0
Unreachable: 0
Source quench: 0
Routing redirect: 0
Echo request: 0
Router advert: 0
Router solicit: 0
Time exceed: 0
IP header bad: 0
Timestamp request: 0
Timestamp reply: 0
Information request: 0
Information reply: 0
Netmask request: 0
Netmask reply: 0
Unknown type: 0
Total number of received ICMP
packets, including:
Echo reply packet, unreachable
packet, source quench packet, routing
redirect packet, Echo request packet,
router advert packet, router solicit
packet, time exceed packet, IP header
bad packet, timestamp request packet,
timestamp reply packet, information
request packet, information reply
packet, netmask request packet,
netmask reply packet, and unknown
types of packets.
1.1.2 ip address
Syntax
ip address ip-address { mask | mask-length } [ sub ]
undo ip address [ ip-address { mask | mask-length } [ sub ] ]
View
VLAN interface view, loopback interface view
Parameter
Ip-address: IP address, in dotted decimal notation.
mask: Subnet mask, in dotted decimal notation.
mask-length: Length of a subnet mask.
sub: Specifies a secondary IP address of a VLAN or loopback interface.
Description
Use the ip address command to specify an IP address and mask for a VLAN or
loopback interface.
Use the undo ip address command to remove an IP address and mask of a VLAN or
loopback interface.
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By default, a VLAN or loopback interface has no IP address.
Generally, it is enough to configure one IP address for an interface. However, you can
configure up to five IP addresses for an interface so that it can be connected to several
subnets. Among these IP addresses, one is the primary IP address and all the others
are secondary ones. The relationship between the primary address and the secondary
addresses is as follows:
z When you configure a primary IP address for an interface which already has a
primary IP address, the new address will replace the old one.
z If you execute the undo ip address command without any parameter, the switch
deletes both primary and secondary IP addresses of the interface. The undo ip
address ip-address { mask | mask-length } command is used to delete the primary
IP address. The undo ip address ip-address { mask | mask-length } sub
command is used to delete secondary IP addresses.
Note that a VLAN interface cannot be configured with a secondary IP address if the
interface has been configured to obtain an IP address through BOOTP or DHCP.
Related command: display ip interface.
Example
# Specify the IP address and subnet mask of VLAN-interface1 to 129.12.0.1 and
255.255.255.0 respectively.
<H3C> system-view
System View: return to User View with Ctrl+Z.
[H3C] interface Vlan-interface 1
[H3C-Vlan-interface1] ip address 129.12.0.1 255.255.255.0
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H3C S3100-52P Ethernet Switch
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Commands
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Chapter 2 IP Performance Configuration
Commands
2.1 IP Performance Configuration Commands
2.1.1 display fib
Syntax
display fib
View
Any view
Parameter
None
Description
Use the display fib command to view the summary of the forwarding information base
(FIB). Each line indicates an FIB entry. The information includes: destination
address/mask length, next hop, current flag, timestamp, and output interface.
Example
# View the FIB summary.
<H3C> display fib
Flag:
U:Usable G:Gateway H:Host B:Blackhole D:Dynamic S:Static
R:Reject E:Equal cost multi-path L:Generated by ARP or ESIS
Destination/Mask Nexthop Flag TimeStamp Interface
10.153.17.0/24 10.153.17.99 U t[0] Vlan-interface1
10.153.18.88/32 127.0.0.1 GHU t[0] InLoopBack0
10.153.18.0/24 10.153.18.88 U t[0] LoopBack0
10.153.17.99/32 127.0.0.1 GHU t[0] InLoopBack0
127.0.0.0/8 127.0.0.1 U t[0] InLoopBack0
Table 2-1 Description on the fields of the display fib command
Field Description
Destination/Mask Destination address/mask length
Nexthop Next hop address
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Field Description
Flag
Flags:
U: A route is up and available.
G: Gateway route
H: Local host route
B: Blackhole route
D: Dynamic route
S: Static route
R: Rejected route
E: Multi-path equal-cost route
L: Route generated by ARP or ESIS
TimeStamp Timestamp
Interface Forwarding interface
2.1.2 display fib ip-address
Syntax
display fib ip-address1 [ { mask1 | mask-length1 } [ ip-address2 { mask2 |
mask-length2 } | longer ] | longer ]
View
Any view
Parameter
ip-address1, ip-address2: Destination IP addresses, in dotted decimal notation.
ip-address1 and ip-address2 together define an address range. The FIB entries in this
address range will be displayed.
mask1, mask2: IP address masks, in dotted decimal notation.
mask-length1, mask-length2: Integers in the range of 0 to 32, representing the mask
length.
longer: Displays the FIB entries matching specific network/mask.
Description
Use the display fib ip-address command to view the FIB entries matching the specified
destination IP address. Each line indicates an FIB entry. The information includes:
destination address/mask length, next hop, current flag, timestamp, and outbound
interface.
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Example
# View the FIB entries whose destination addresses match 12.158.10.0 in the natural
mask range.
<H3C> display fib 12.158.10.0
Route Entry Count: 1
Flag:
U:Usable G:Gateway H:Host B:Blackhole D:Dynamic S:Static
R:Reject E:Equal cost multi-path L:Generated by ARP or ESIS
Destination/Mask Nexthop Flag TimeStamp Interface
12.158.10.0/24 12.158.10.1 U t[85391] Vlan-interface10
# Display the FIB entries whose destination addresses are in the range of
12.158.10.0/24 to 12.158.10.6/24.
<H3C> display fib 12.158.10.0 255.255.255.0 12.158.10.6 255.255.255.0
Route Entry Count: 1
Flag:
U:Usable G:Gateway H:Host B:Blackhole D:Dynamic S:Static
R:Reject E:Equal cost multi-path L:Generated by ARP or ESIS
Destination/Mask Nexthop Flag TimeStamp Interface
12.158.10.0/24 12.158.10.1 U t[85391] Vlan-interface10
For details about the displayed information, see Table 2-1.
2.1.3 display fib acl
Syntax
display fib acl number
View
Any view
Parameter
number: ACL in the number form, in the range of 2000 to 2999.
Description
Use the display fib acl command to view the FIB entries matching a specific ACL. For
ACL, refer to the ACL part of this manual.
Example
# View all the FIB entries.
<H3C> display fib
Flag:
U:Usable G:Gateway H:Host B:Blackhole D:Dynamic S:Static
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R:Reject E:Equal cost multi-path L:Generated by ARP or ESIS
Destination/Mask Nexthop Flag TimeStamp Interface
211.71.75.0/24 1.1.1.2 GSU t[250763] Vlan-interface2
1.1.2.1/32 127.0.0.1 GHU t[37] InLoopBack0
127.0.0.1/32 127.0.0.1 GHU t[37] InLoopBack0
127.0.0.0/8 127.0.0.1 U t[37] InLoopBack0
1.1.1.1/32 127.0.0.1 GHU t[37] InLoopBack0
1.1.1.0/24 1.1.1.1 U t[37] Vlan-interface2
# View ACL 2001.
<H3C> display acl 2001
Basic ACL 2001, 1 rule
Acl's step is 1
rule 0 permit source 211.71.75.0 0.0.0.255
# View the FIB entries filtered by ACL 2001.
<H3C> display fib acl 2001
Route Entry matched by access-list 2001
Summary Counts :1
Flag:
U:Usable G:Gateway H:Host B:Blackhole D:Dynamic S:Static
R:Reject E:Equal cost multi-path L:Generated by ARP or ESIS
Destination/Mask Nexthop Flag TimeStamp Interface
211.71.75.0/24 1.1.1.2 GSU t[250763] Vlan-interface2
For details about the displayed information, see Table 2-1.
2.1.4 display fib |
Syntax
display fib | { begin | exclude | include } text
View
Any view
Parameter
begin: Displays the FIB entries from the first one containing the string identified by the
argument text.
exclude: Displays only those FIB entries excluding the character string text.
include: Display only those FIB entries containing the character string text.
text: Character string.
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Description
Use the display fib | command to output the FIB entries related to the specific
character string from the buffer according to the regular expression For the format of
the regular expression, refer to the Configuration File Management part of this manual.
Example
# View the lines starting from the first one containing the string 169.254.0.0.
<H3C> display fib | begin 169.254.0.0
169.254.0.0/16 2.1.1.1 U t[0] Vlan-interface1
2.0.0.0/16 2.1.1.1 U t[0] Vlan-interface1
For details about the displayed information, see Table 2-1.
2.1.5 display fib ip-prefix
Syntax
display fib ip-prefix listname
View
Any view
Parameter
listname: Prefix list name, a string of 1 to 19 characters.
Description
Use the display fib ip-prefix command to view the FIB entries matching a specific
prefix list. For the prefix list, refer to the IP Routing Policy Configuration in the Routing
Protocol part of the manual.
Example
# View the prefix list abc.
<H3C> display ip ip-prefix abc
name index conditions ip-prefix / mask GE LE
abc 10 permit 211.71.75.0/24 -- --
# View all the FIB entries.
<H3C> display fib
Flag:
U:Usable G:Gateway H:Host B:Blackhole D:Dynamic S:Static
R:Reject E:Equal cost multi-path L:Generated by ARP or ESIS
Destination/Mask Nexthop Flag TimeStamp Interface
211.71.75.0/24 1.1.1.2 GSU t[250763] Vlan-interface2
1.1.2.1/32 127.0.0.1 GHU t[37] InLoopBack0
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127.0.0.1/32 127.0.0.1 GHU t[37] InLoopBack0
127.0.0.0/8 127.0.0.1 U t[37] InLoopBack0
1.1.1.1/32 127.0.0.1 GHU t[37] InLoopBack0
1.1.1.0/24 1.1.1.1 U t[37] Vlan-interface2
# View the FIB entries matching prefix list abc.
<H3C> display fib ip-prefix abc
Route Entry matched by prefix-list abc
Summary Counts :1
Flag:
U:Usable G:Gateway H:Host B:Blackhole D:Dynamic S:Static
R:Reject E:Equal cost multi-path L:Generated by ARP or ESIS
Destination/Mask Nexthop Flag TimeStamp Interface
211.71.75.0/24 1.1.1.2 GSU t[250763] Vlan-interface2
For details about the displayed information, see Table 2-1.
2.1.6 display fib statistics
Syntax
display fib statistics
View
Any view
Parameter
None
Description
Use the display fib statistics command to view the total number of FIB entries.
Example
# View the total number of FIB entries.
<H3C> display fib statistics
Route Entry Count : 30
2.1.7 display icmp statistics
Syntax
display icmp statistics
View
Any view
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Parameter
None
Description
Use the display icmp statistics command to view the statistics about ICMP packets.
Related command: display ip interface and reset ip statistics.
Example
# View the statistics about ICMP packets.
<H3C> 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 2-2 Description on the fields of the display icmp statistics command
Field Description
bad formats Number of input packets in bad formats
bad checksum Number of input packets with bad checksum
echo Number of input/output echo request packets
destination unreachable
Number of input/output packets with
unreachable destination
source quench Number of input/output source quench packets
redirects Number of input/output redirected packets
echo reply Number of input/output echo reply packets
parameter problem
Number of input/output packets with parameter
problem
timestamp Number of input/output timestamp packets
information request Number of input information request packets
mask requests Number of input/output mask request packets
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Field Description
mask replies Number of input/output mask reply packets
information reply Number of output information reply packets
time exceeded Number of timeout packets
2.1.8 display ip socket
Syntax
display ip socket [ socktype sock-type ] [ task-id socket-id ]
View
Any view
Parameter
sock-type: Type of a socket, ranging from 1 to 3. These values correspond to
SOCK_STREAM (TCP socket), SOCK_DGRAM (UDP socket or socket based on the
link layer), and SOCK_RAW (RAW IP socket).
task-id: ID of a task, with the value ranging from 1 to 100.
socket-id: ID of a socket, with the value ranging from 0 to 3072.
Description
Use the display ip socket command to display the information of the current socket.
Example
# Display the information about the socket of the TCP type.
<H3C> display ip socket socktype 1
SOCK_STREAM:
Task = VTYD(18), 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_SENDVPNID SO_SETKEEPALIVE,
socket state = SS_PRIV SS_ASYNC
Task = VTYD(18), socketid = 2, Proto = 6,
LA = 10.153.17.99:23, FA = 10.153.17.56:1161,
sndbuf = 8192, rcvbuf = 8192, sb_cc = 0, rb_cc = 0,
socket option = SO_KEEPALIVE SO_OOBINLINE SO_SENDVPNID SO_SETKEEPALIVE,
socket state = SS_ISCONNECTED SS_PRIV SS_ASYNC
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Task = VTYD(18), socketid = 3, Proto = 6,
LA = 10.153.17.99:23, FA = 10.153.17.82:1121,
sndbuf = 8192, rcvbuf = 8192, sb_cc = 0, rb_cc = 0,
socket option = SO_KEEPALIVE SO_OOBINLINE SO_SENDVPNID SO_SETKEEPALIVE,
socket state = SS_ISCONNECTED SS_PRIV SS_ASYNC
Table 2-3 Description on the fields of the display ip socket command
Field Description
SOCK_STREAM
Type of a socket. Three types are available:
SOCK_STREAM (TCP socket), SOCK_DGRAM
(UDP socket or socket supporting link layer
access), and SOCK_RAW (RAW IP socket).
Task Task ID
socketid Socket ID
Proto Protocol number used by the socket
sndbuf Sending buffer size of the socket
rcvbuf Receiving buffer size of the socket
sb_cc
Current data size in the sending buffer. The value
makes sense only for the socket of TCP type,
because only TCP is able to cache data.
rb_cc Current data size in the receiving buffer
socket option Option of a socket
socket state State of a socket
2.1.9 display ip statistics
Syntax
display ip statistics
View
Any view
Parameter
None
Description
Use the display ip statistics command to view the statistics about IP packets.
Related command: display ip interface and reset ip statistics.
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Example
# View the statistics about IP packets.
<H3C> 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 2-4 Description on the fields of the display ip statistics command
Field Description
sum Sum of input packets
Local
Number of input packets whose
destination address is the local device
bad protocol
Number of packets with wrong protocol
number
bad format Number of packets in bad format
bad checksum Number of packets with bad checksum
Input:
bad options Number of packets with wrong options
forwarding Number of forwarded packets
local
Number of packets sent by the local
device
dropped
Number of dropped packets during
transmission
no route Number of packets that cannot be routed
Output:
compress fails
Number of packets that cannot be
compressed
input Number of input fragments
output Number of output fragments
dropped Number of dropped fragments
fragmented
Number of packets that are fragmented
Fragment:
couldn't fragment
Number of packets that cannot be
fragmented
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Field Description
sum Number of reassembled packets
Reassembling:
timeouts Number of timeout fragment packets
2.1.10 display tcp statistics
Syntax
display tcp statistics
View
Any view
Parameter
None
Description
Use the display tcp statistics command to view the statistics about TCP packets.
Related command: display tcp status and reset tcp statistics.
Example
# View the statistics about TCP packets.
<H3C> display tcp statistics
Received packets:
Total: 753
packets in sequence: 412 (11032 bytes)
window probe packets: 0, window update packets: 0
checksum error: 0, offset error: 0, short error: 0
duplicate packets: 4 (88 bytes), partially duplicate packets: 5 (7 bytes)
out-of-order packets: 0 (0 bytes)
packets of data after window: 0 (0 bytes)
packets received after close: 0
ACK packets: 481 (8776 bytes)
duplicate ACK packets: 7, too much ACK packets: 0
Sent packets:
Total: 665
urgent packets: 0
control packets: 5 (including 1 RST)
window probe packets: 0, window update packets: 2
data packets: 618 (8770 bytes) data packets retransmitted: 0 (0 bytes)
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ACK-only packets: 40 (28 delayed)
Retransmitted timeout: 0, connections dropped in retransmitted timeout: 0
Keepalive timeout: 0, keepalive probe: 0, Keepalive timeout, so connections
disconnected : 0
Initiated connections: 0, accepted connections: 0, established connections:
0
Closed connections: 0 (dropped: 0, initiated dropped: 0)
Packets dropped with MD5 authentication: 0
Packets permitted with MD5 authentication: 0
Table 2-5 Description on the fields of the display tcp statistics command
Field Description
Total Total number of received packets
packets in sequence Number of packets in sequence
window probe packets/
window update
packets
Number of window probe
packets/number of window update
packets
checksum error/ offset
error/ short error
Number of checksum errors/number
of offset errors/number of packet too
short errors
duplicate packets/
partially duplicate
packets
Number of duplicate packets/number
of partially duplicate packets
out-of-order packets Number of out-of-order packets
packets of data after
window
Number of packets out of window
packets received after
close
Number of received packets after
close
ACK packets Number of ACK packets
Received packets
duplicate ACK packets/
too much ACK packets
Number of duplicate ACK
packets/number of ACK packets for
data not sent.
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Field Description
Total Total number of sent packets
urgent packets Number of urgent packets
control packets
(including 1 RST)
Number of control packets, including
one retransmitted packet
window probe packets/
window update
packets
Number of window probe
packets/number of window update
packets
data packets/ data
packets retransmitted
Number of data packets/number of
retransmitted packets
Sent packets
ACK-only packets
Number of ACK packets (28 delay
ACK packets)
Retransmitted timeout/ connections
dropped in retransmitted timeout
Times of retransmission timer
timeout/number of dropped
connections due to retransmission
times exceeding the limit
Keepalive timeout/ keepalive probe/
Keepalive timeout, so connections
disconnected
Times of keepalive timer
timeout/number of transmitted
keepalive probe packets/number of
dropped connections due to
keepalive probe failure
Initiated connections/ accepted
connections/ established connections
Number of initiated
connections/number of accepted
connections/number of established
connections
Closed connections (dropped:\ initiated
dropped: )
Number of closed connections
(number of dropped
connections\number of failed
connection attempts)
Packets dropped with MD5 authentication
Number of dropped packets with
MD5 authentication
Packets permitted with MD5 authentication
Number of permitted packets with
MD5 authentication
2.1.11 display tcp status
Syntax
display tcp status
View
Any view
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Parameter
None
Description
Use the display tcp status command to view the state of all the TCP connections so
that you can monitor TCP connections in real time.
Example
# View the state of all the TCP connections.
<H3C> 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 2-6 Description on the fields of the display tcp status command
Field Description
*
If there is an asterisk before a connection, it means that the
TCP connection is authenticated through the MD5 algorithm
TCPCB Address of the TCP control block
Local Add:port Local IP address; port number
Foreign Add:port Remote IP address; port number
State TCP connection state
2.1.12 display udp statistics
Syntax
display udp statistics
View
Any view
Parameter
None
Description
Use the display udp statistics command to view the statistics about UDP packets.
Related command: reset udp statistics.
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Example
# View the statistics about UDP packets.
<H3C> display udp statistics
Received packets:
Total: 26320
checksum error: 0
shorter than header: 0, data length larger than packet: 0
no socket on port: 0
total broadcast or multicast packets : 25006
no socket broadcast or multicast packets: 24989
not delivered, input socket full: 0
input packets missing pcb cache: 1314
Sent packets:
Total: 7187
Table 2-7 Description on the fields of the display udp statistics command
Field Description
Total Total number of received UDP packets
checksum error Number of packets with checksum errors
shorter than header,
Number of packets whose lengths are shorter
than their headers
data length larger than
packet
Number of packets whose data lengths are
larger than the packets lengths (specified in
the headers)
no socket on port
Number of packets dropped because the
socket corresponding to the port number is
not found
total broadcast or
multicast packets
Total number of transmitted broadcast or
multicast packets
no socket broadcast or
multicast packets
Total number of transmitted broadcast or
multicast packets whose sockets are not
found
not delivered, input
socket full
Number of not delivered packets because the
socket cache is full
Receive
d
packets:
input packets missing
pcb cache
Number of packets missing pcb cache
Sent
packets:
Total Total number of transmitted UDP packets
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