Command Manual – Routing Protocol
H3C S3100-52P Ethernet Switches Table of Contents
i
Table of Contents
Chapter 1 IP Routing Table Display Commands........................................................................1-1
1.1 IP Routing Table Display Commands................................................................................1-1
1.1.1 display ip routing-table............................................................................................1-1
1.1.2 display ip routing-table ip-address..........................................................................1-2
1.1.3 display ip routing-table ip-address1 ip-address2....................................................1-4
1.1.4 display ip routing-table protocol..............................................................................1-5
1.1.5 display ip routing-table radix ................................................................................... 1-6
1.1.6 display ip routing-table statistics ............................................................................. 1-7
1.1.7 display ip routing-table verbose..............................................................................1-8
Chapter 2 Static Route Configuration Commands ....................................................................2-1
2.1 Static Route Configuration Commands.............................................................................2-1
2.1.1 delete static-routes all.............................................................................................2-1
2.1.2 reset ip routing-table ...............................................................................................2-1
2.1.3 ip route-static...........................................................................................................2-2
Command Manual – Routing Protocol
H3C S3100-52P Ethernet Switches Chapter 1 IP Routing Table Display Commands
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Chapter 1 IP Routing Table Display Commands
Note:
When running a routing protocol, the Ethernet switch also functions as a router. The
words “router” and the router icons covered in the following text represent routers in
common sense and Ethernet switches running a routing protocol. To improve
readability, this will not be mentioned again in this manual.
1.1 IP Routing Table Display Commands
1.1.1 display ip routing-table
Syntax
display ip routing-table
View
Any view
Parameter
None
Description
Use the display ip routing-table command to display the routing table summary.
This command displays the summary of the routing table. Each line represents one
route, containing destination address/mask length, protocol, preference, cost, next hop,
and output interface.
This command displays only the currently used routes, that is, the optimal routes.
Example
# Display the summary of the current routing table.
<H3C> display ip routing-table
Routing Table: public net
Destination/Mask Protocol Pre Cost Nexthop Interface
1.1.1.0/24 DIRECT 0 0 1.1.1.1 Vlan-interface1
1.1.1.1/32 DIRECT 0 0 127.0.0.1 InLoopBack0
Command Manual – Routing Protocol
H3C S3100-52P Ethernet Switches Chapter 1 IP Routing Table Display Commands
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2.2.2.0/24 DIRECT 0 0 2.2.2.1 Vlan-interface2
2.2.2.1/32 DIRECT 0 0 127.0.0.1 InLoopBack0
3.3.3.0/24 DIRECT 0 0 3.3.3.1 Vlan-interface3
3.3.3.1/32 DIRECT 0 0 127.0.0.1 InLoopBack0
4.4.4.0/24 DIRECT 0 0 4.4.4.1 Vlan-interface4
4.4.4.1/32 DIRECT 0 0 127.0.0.1 InLoopBack0
127.0.0.0/8 DIRECT 0 0 127.0.0.1 InLoopBack0
127.0.0.1/32 DIRECT 0 0 127.0.0.1 InLoopBack0
Table 1-1 Description on the fields of the display ip routing-table command
Field Description
Destination/Mask Destination address/mask length
Protocol Routing protocol
Pre Route preference
Cost Route cost
Nexthop Next hop address
Interface
Output interface, through which the data
packets destined for the destination
network segment are sent
1.1.2 display ip routing-table ip-address
Syntax
display ip routing-table ip-address [ mask ] [ longer-match ] [ verbose ]
View
Any view
Parameter
ip-address: Destination IP address, in dotted decimal notation.
mask: IP address mask, length in dotted decimal notation or expressed as an integer. It
ranges from 0 to 32 when expressed as an integer.
longer-match: Specifies all the routes that lead to the destination address and match
the specified mask. If you do not specify the mask argument, those that match the
natural mask are specified.
verbose: With the verbose argument specified, this command displays the verbose
information of both the active and inactive routes. Without the argument specified, this
command only displays the summary of active routes.
Command Manual – Routing Protocol
H3C S3100-52P Ethernet Switches Chapter 1 IP Routing Table Display Commands
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Description
Use the display ip routing-table ip-address command to display the routing
information of the specified destination address.
With different arguments provided, the command output is different. The following is the
command output with different arguments provided:
z display ip routing-table ip-address
If the destination address ip-address corresponds to a route in the natural mask range,
this command displays the route that is the longest match of the destination address
ip-address and is active.
z display ip routing-table ip-address mask
This command only displays the routes exactly matching the specified destination
address and mask.
z display ip routing-table ip-address longer-match
This command displays all destination address routes matching the specified
destination address in the natural mask range.
z display ip routing-table ip-address mask longer-match
This command displays all destination address routes matching the specified
destination address in the specified mask range.
Example
# There is a corresponding route in the natural mask range. Display the summary.
<H3C> display ip routing-table 169.0.0.0
Destination/Mask Protocol Pre Cost Nexthop Interface
169.0.0.0/16 Static 60 0 2.1.1.1 LoopBack1
For detailed description of the output information, see Table 1-1.
# There is no corresponding route (only the longest matching route is displayed) in the
natural mask range. Display the summary.
<H3C> display ip routing-table 169.253.0.0
Destination/Mask Protocol Pre Cost Nexthop Interface
169.0.0.0/8 Static 60 0 2.1.1.1 LoopBack1
# There are corresponding routes in the natural mask range. Display detailed
information.
<H3C> display ip routing-table 169.0.0.0 verbose
Routing tables:
+ = Active Route, - = Last Active, # = Both * = Next hop in use
Summary count: 1
**Destination: 169.0.0.0 Mask: 255.255.255.0
Protocol: #STATIC Preference: 60
Command Manual – Routing Protocol
H3C S3100-52P Ethernet Switches Chapter 1 IP Routing Table Display Commands
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*NextHop: 2.1.1.1 Interface: 2.1.1.1(LoopBack1)
Vlinkindex: 0
State: <Int ActiveU Gateway Static Unicast>
Age: 4:49 Cost: 0/0 Tag: 0
# There is no corresponding route in the natural mask range (only the longest matched
route is displayed). Display the detailed information.
<H3C> display ip routing-table 169.253.0.0 verbose
Routing Tables:
+ = Active Route, - = Last Active, # = Both * = Next hop in use
Summary count:1
**Destination: 169.0.0.0 Mask: 255.0.0.0
Protocol: #Static Preference: -60
*NextHop: 2.1.1.1 Interface: 2.1.1.1(LoopBack1)
Vlinkindex: 0
State: <Int ActiveU Static Unicast>
Age: 3:47 Cost: 0/0 Tag: 0
For detailed description of the output information, see Table 1-2.
1.1.3 display ip routing-table ip-address1 ip-address2
Syntax
display ip routing-table ip-address1 mask1 ip-address2 mask2 [ verbose ]
View
Any view
Parameter
ip-address1, ip-address2: Destination IP address in dotted decimal notation.
ip-address1, mask1 and ip-address2, mask2 determine one address range together.
ip-address1 ANDed with mask1 specifies the start of the range, while ip-address2
ANDed with mask2 specifies the end. This command displays the route in this address
range.
mask1, mask2: IP address mask, length in dotted decimal notation or expressed as an
integer. It ranges from 0 to 32 when expressed as an integer.
verbose: With the verbose argument provided, this command displays the verbose
information of both active and inactive routes. Without this argument provided, this
command displays the summary of active routes only.
Description
Use the display ip routing-table ip-address1 ip-address2 command to display the
route information in the specified destination address range.
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H3C S3100-52P Ethernet Switches Chapter 1 IP Routing Table Display Commands
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Example
# Display the routing information of destination addresses ranging from 1.1.1.0 to
2.2.2.0.
<H3C>display ip routing-table 1.1.1.0 24 2.2.2.0 24
Routing tables:
Summary count: 3
Destination/Mask Protocol Pre Cost Nexthop Interface
1.1.1.0/24 DIRECT 0 0 1.1.1.1 Vlan-interface1
1.1.1.1/32 DIRECT 0 0 127.0.0.1 InLoopBack0
2.2.2.0/24 DIRECT 0 0 2.2.2.1 Vlan-interface2
For detailed description of the output information, see Table 1-1.
1.1.4 display ip routing-table protocol
Syntax
display ip routing-table protocol protocol [ inactive | verbose ]
View
Any view
Parameter
protocol: You can provide one of the following values for this argument.
z direct: Displays direct-connect route information
z static: Displays static route information.
inactive: With this argument provided, this command displays the inactive route
information. Without this argument provided, this command displays both active and
inactive route information.
verbose: With this argument provided, this command displays the verbose route
information. Without this argument provided, this command displays route summary
only.
Description
Use the display ip routing-table protocol command to display the route information
of a specific protocol.
Example
# Display the summary of all direct-connect routes.
<H3C> display ip routing-table protocol direct
DIRECT Routing tables:
Summary count: 4
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H3C S3100-52P Ethernet Switches Chapter 1 IP Routing Table Display Commands
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DIRECT Routing tables status:<active>:
Summary count: 3
Destination/Mask Protocol Pre Cost Nexthop Interface
20.1.1.1/32 DIRECT 0 0 127.0.0.1 InLoopBack0
127.0.0.0/8 DIRECT 0 0 127.0.0.1 InLoopBack0
127.0.0.1/32 DIRECT 0 0 127.0.0.1 InLoopBack0
DIRECT Routing tables status:<inactive>:
Summary count: 1
Destination/Mask Protocol Pre Cost Nexthop Interface
210.0.0.1/32 DIRECT 0 0 127.0.0.1 InLoopBack0
# Display the static routing table.
<H3C> display ip routing-table protocol static
STATIC Routing tables:
Summary count: 1
STATIC Routing tables status:<active>:
Summary count: 0
STATIC Routing tables status:<inactive>:
Summary count: 1
Destination/Mask Protocol Pre Cost Nexthop Interface
1.2.3.0/24 STATIC 60 0 1.2.4.5 Vlan-interface10
For detailed description of the output information, see Table 1-1.
1.1.5 display ip routing-table radix
Syntax
display ip routing-table radix
View
Any view
Parameter
None
Description
Use the display ip routing-table radix command to display the route information in a
tree structure.
Example
<H3C> display ip routing-table radix
Radix tree for INET (2) inodes 7 routes 5:
+-32+--{210.0.0.1
+--0+
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H3C S3100-52P Ethernet Switches Chapter 1 IP Routing Table Display Commands
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| | +--8+--{127.0.0.0
| | | +-32+--{127.0.0.1
| +--1+
| +--8+--{20.0.0.0
| +-32+--{20.1.1.1
Table 1-2 Description on the fields of the display ip routing-table radix command
Field Description
INET Address suite
inodes Number of nodes
routes Number of routes
1.1.6 display ip routing-table statistics
Syntax
display ip routing-table statistics
View
Any view
Parameter
None
Description
Use the display ip routing-table statistics command to display the integrated routing
information.
The integrated routing information includes the total number of routes, the number of
active routes, the number of routes added by protocols, and the number of routes
deleted.
Example
# Display the integrated route information.
<H3C> display ip routing-table statistics
Routing tables:
Proto route active added deleted
DIRECT 24 4 25 1
STATIC 4 1 4 0
RIP 0 0 0 0
OSPF 0 0 0 0
O_ASE 0 0 0 0
Command Manual – Routing Protocol
H3C S3100-52P Ethernet Switches Chapter 1 IP Routing Table Display Commands
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O_NSSA 0 0 0 0
Total 28 5 29 1
Table 1-3 Description on the fields of the display ip routing-table statistics
command
Field Description
Proto
Routing protocol. O_ASE stands for
OSPF_ASE routes; O_NSSA stands for
OSPF NSSA routes; AGGRE stands for
aggregated routes.
route Total number of routes
active Number of active routes
added
Number of routes added after the router
is rebooted or the routing table is cleared
last time.
deleted
Number of routes deleted (Such routes
will be freed in a period of time)
Total
Total number of the different kinds of
routes
1.1.7 display ip routing-table verbose
Syntax
display ip routing-table verbose
View
Any view
Parameter
None
Description
Use the display ip routing-table verbose command to display the verbose routing
table information.
With the verbose argument provided, this command displays the verbose routing table
information. The descriptor describing the route state will be displayed first. Then, the
statistics of the entire routing table will be output. Finally, the verbose description of
each route will be output.
The display ip routing-table verbose command can display all current routes,
including inactive routes and invalid routes.
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H3C S3100-52P Ethernet Switches Chapter 1 IP Routing Table Display Commands
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Example
# Display the verbose routing table information.
<H3C> display ip routing-table verbose
Routing Tables:
+ = Active Route, - = Last Active, # = Both * = Next hop in use
Destinations: 3 Routes: 3
Holddown: 0 Delete: 62 Hidden: 0
**Destination: 1.1.1.0 Mask: 255.255.255.0
Protocol: #DIRECT Preference: 0
*NextHop: 1.1.1.1 Interface: 1.1.1.1(Vlan-interface1)
State: <Int ActiveU Retain Unicast>
Age: 20:17:41 Cost: 0/0
**Destination: 1.1.1.1 Mask: 255.255.255.255
Protocol: #DIRECT Preference: 0
*NextHop: 127.0.0.1 Interface: 127.0.0.1(InLoopBack0)
State: <NoAdvise Int ActiveU Retain Gateway Unicast>
Age: 20:17:42 Cost: 0/0
**Destination: 2.2.2.0 Mask: 255.255.255.0
Protocol: #DIRECT Preference: 0
*NextHop: 2.2.2.1 Interface: 2.2.2.1(Vlan-interface2)
State: <Int ActiveU Retain Unicast>
Age: 20:08:05 Cost: 0/0
First, display statistics of the whole routing table. Then, output detailed information of
every route entry in turn.
Table 1-2shows the meaning of route status. Table 1-4 shows
routing table statistics.
Table 1-4 Description on the fields of the display ip routing-table verbose command
Field Description
Holddown Number of held-down routes
Delete Number of deleted routes
Hidden Number of hidden routes
Command Manual – Routing Protocol
H3C S3100-52P Ethernet Switches Chapter 2 Static Route Configuration Commands
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Chapter 2 Static Route Configuration Commands
2.1 Static Route Configuration Commands
2.1.1 delete static-routes all
Syntax
delete static-routes all
View
System view
Parameter
None
Description
Use the delete static-routes all command to delete all static routes.
The system will request your confirmation before it deletes all the configured static
routes.
Related command: ip route-static and display ip routing-table.
Example
# Delete all the static routes in the router.
<H3C> system-view
System View: return to User View with Ctrl+Z.
[H3C] delete static-routes all
Are you sure to delete all the unicast static routes?[Y/N]y
2.1.2 reset ip routing-table
Syntax
reset ip routing-table statistics protocol { all | protocol }
View
User view
Parameter
statistics protocol: Clears routing table statistics.
all: All protocols.
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protocol: Origin of routes.
Description
Use the reset ip routing-table command to reset routing table statistics for the public
network routing table.
Example
# Clear private routing information.
<Sysname> reset ip routing-table statistics protocol all
2.1.3 ip route-static
Syntax
ip route-static ip-address { mask | mask-length } { interface-type interface-number |
next-hop } [ preference preference-value ] [ reject | blackhole ] [ description text |
detect-group group number ]*
undo ip route-static ip-address { mask | mask-length } [ interface-type
interface-number | next-hop ] [ preference preference-value ] [ reject | blackhole ]
[ description text | detect-group group number ]*
View
System view
Parameter
ip-address: Destination IP address, in dotted decimal notation.
mask: Mask.
mask-length: Mask length. Since 1s in a 32-bit mask must be consecutive, a mask in
dotted decimal notation can be replaced by mask-length, which is the number of the
consecutive 1s in the mask.
interface-type interface-number: Next-hop outgoing interface. The packets sent to a
null interface, which is a virtual interface, will be discarded immediately. This can
decrease the system load.
next-hop: Next hop IP address of the route, in dotted decimal notation.
preference-value: Preference level of the route, in the range from 1 to 255. The default
preference is 60.
reject: Indicates an unreachable route. If a static route to a destination has the "reject"
attribute, all the IP packets destined for this destination will be discarded, and the
source host will be informed that the destination is unreachable.
blackhole: Indicates a blackhole route. If a static route to a destination has the
“blackhole” attribute, the outgoing interface of this route is the Null 0 interface
Command Manual – Routing Protocol
H3C S3100-52P Ethernet Switches Chapter 2 Static Route Configuration Commands
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regardless of the next hop address, and all the IP packet addresses destined for this
destination are dropped without the source host being notified.
description: Provides a description for the current route.
detect-group: Specifies a detect group.
Description
Use the ip route-static command to configure a static route.
Use the undo ip route-static command to delete a manually configured static route.
By default, the system can obtain the subnet route directly connected to the router.
When you configure a static route, if no preference is specified for the route, the
preference defaults to 60, and if the route is not specified as reject or blackhole, the
route will be reachable by default.
When configuring a static route, note the following points:
z If the destination IP address and the mask are both 0.0.0.0, what you are
configuring is a default route. All the packets that fail to find a routing entry will be
forwarded through this default route.
z You cannot configure an interface address of the local switch as the next hop
address of a static route.
z You can configure a different preference to implement flexible route management
policy.
Related command: display ip routing-table.
Example
# Configure the next hop of the default route as 129.102.0.2.
<H3C> system-view
System View: return to User View with Ctrl+Z.
[H3C] ip route-static 0.0.0.0 0.0.0.0 129.102.0.2
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