display ipv6 routing-table time-range

Function

The display ipv6 routing-table time-range command displays information about routes generated in a specified time range in an IPv6 routing table.

Format

display ipv6 routing-table [ vpn-instance vpn-instance-name ] time-range min-age max-age [ verbose | brief ]

Parameters

Parameter	Description	Value
vpn-instance vpn-instance-name	Displays information about routes generated in a specified time range in the IPv6 routing table of the specified VPN instance. If you do not specify this parameter, the display ipv6 routing-table time-range command displays information about routes generated in a specified time range in the public IPv6 routing table.	The value is a string of 1 to 31 case-sensitive characters, spaces not supported. When double quotation marks are used around the string, spaces are allowed in the string.
min-age	Specifies the end time of the period when routes are generated.	The format is xxdxxhxxmxxs. The d indicates days. The value is an integer ranging from 0 to 10000. The h indicates hours. The value is an integer ranging from 0 to 23. The m indicates minutes. The value is an integer ranging from 0 to 59. The s indicates seconds. The value is an integer ranging from 0 to 59. For example, you can enter 5d4h30m20s to specify 5 days, 4 hours, 30 minutes, and 20 seconds. NOTE: If the value of the d is 10000, the values of the h, m, and s can be only 0.
max-age	Specifies the start time of the period when routes are generated.	The format is xxdxxhxxmxxs. The d indicates days. The value is an integer ranging from 0 to 10000. The h indicates hours. The value is an integer ranging from 0 to 23. The m indicates minutes. The value is an integer ranging from 0 to 59. The s indicates seconds. The value is an integer ranging from 0 to 59. For example, you can enter 5d4h30m20s to specify 5 days, 4 hours, 30 minutes, and 20 seconds. NOTE: If the value of the d is 10000, the values of the h, m, and s can be only 0.
verbose	Displays detailed information about active and inactive routes. If you do not specify this parameter, the display ipv6 routing-table time-range command displays only summary information about active routes.	-
brief	Displays brief information about active routes.	-

Views

All views

Default Level

1: Monitoring level

Usage Guidelines

Usage Scenario

If route flapping occurs on a network, you can run the display ipv6 routing-table time-range command and specify a small time range for the command. By doing so, you can find the flapping route in a timely manner and accelerate fault locating.

Precautions

You must make sure that max-age is greater that min-age. Otherwise, the display ipv6 routing-table time-range command does not display any information.

If the specified max-age is greater than min-age and no route was generated within this time range, the display ipv6 routing-table time-range command displays only the table heading.

Example

# Display information about public network IPv6 routes generated in the last 2 hours, 20 minutes, and 10 seconds.

<sysname> display ipv6 routing-table time-range 0 2h20m10s

Routing Table : Public
         Destinations : 4        Routes : 4

 Destination  : ::1                             PrefixLength : 128
 NextHop      : ::1                             Preference   : 0
 Cost         : 0                               Protocol     : Direct
 RelayNextHop : ::                              TunnelID     : 0x0
 Interface    : InLoopBack0                     Flags        : D

 Destination  : 2001:db8:1::1                   PrefixLength : 128
 NextHop      : ::1                             Preference   : 0
 Cost         : 0                               Protocol     : Direct
 RelayNextHop : ::                              TunnelID     : 0x0
 Interface    : LoopBack2                       Flags        : D

 Destination  : 2001:db8:1::2                   PrefixLength : 128
 NextHop      : ::                              Preference   : 60
 Cost         : 0                               Protocol     : Static
 RelayNextHop : ::                              TunnelID     : 0x0
 Interface    : NULL0                           Flags        : D

 Destination  : FE80::                          PrefixLength : 10
 NextHop      : ::                              Preference   : 0
 Cost         : 0                               Protocol     : Direct
 RelayNextHop : ::                              TunnelID     : 0x0
 Interface    : NULL0                           Flags        : D

# Display brief information about public network IPv6 routes generated in the last 30 minutes.

<sysname> display ipv6 routing-table time-range 1m 30m brief

Routing Table :Public
         Destinations : 1        Routes : 1
 
Format :          
Destination/Mask                             Protocol
Nexthop                                      Interface
------------------------------------------------------------------------------  
 ::1/128                                     Direct
  ::1                                        InLoopBack0

**Table 1** Description of the display ipv6 routing-table time-range command output
Item	Description
Routing Tables: Public	Indicates the routing table is a public routing table
Destinations	Number of destination networks and hosts
Routes	Number of routes
Destination	IP addresses of the destination network and host
PrefixLength	Prefix length of a route
NextHop	Next hop IPv6 address
Preference	Route preference
Cost	Route cost
Protocol	Name of the routing protocol
RelayNextHop	Iterated next hop
TunnelID	Tunnel ID: 0x0 indicates that the route does not use a tunnel or the tunnel fails to be set up. If the value is not 0x0, the route is iterated to a tunnel.
Interface	Outbound interface in a route with a reachable next hop
Flags	Route flags: R: The route is an iterated route. D: The route is sent to the Forwarding Information Base (FIB) table.
Destination/Mask	Address and mask of the destination network or host

# Display detailed information about public network routes generated in the last 20 minutes.

<sysname> display ipv6 routing-table time-range 0 2h20m10s verbose

Routing Table : Public
         Destinations : 4        Routes : 5

 Destination  : ::1                             PrefixLength : 128
 NextHop      : ::1                             Preference   : 0
 Neighbour    : ::                              ProcessID    : 0
 Label        : NULL                            Protocol     : Direct
 State        : Active NoAdv                    Cost         : 0
 Entry ID     : 262551588                       EntryFlags   : 0x80010050
 Reference Cnt: 2                               Tag          : 0
 Priority     : high                            Age          : 7694sec
 IndirectID   : 0x0
 RelayNextHop : ::                              TunnelID     : 0x0
 Interface    : InLoopBack0                     Flags        : D

 Destination  : 2001:db8:1::1                   PrefixLength : 128
 NextHop      : ::1                             Preference   : 0
 Neighbour    : ::                              ProcessID    : 0
 Label        : NULL                            Protocol     : Direct
 State        : Active Adv                      Cost         : 0
 Entry ID     : 262552100                       EntryFlags   : 0x80010040
 Reference Cnt: 2                               Tag          : 0
 Priority     : high                            Age          : 101sec
 IndirectID   : 0x0
 RelayNextHop : ::                              TunnelID     : 0x0
 Interface    : LoopBack2                       Flags        : D

 Destination  : 2001:db8:1::1                   PrefixLength : 128
 NextHop      : 2001:db8:1::2                   Preference   : 60
 Neighbour    : ::                              ProcessID    : 0
 Label        : NULL                            Protocol     : Static
 State        : Inactive Adv Relied             Cost         : 0
 Entry ID     : 262551716                       EntryFlags   : 0x20140
 Reference Cnt: 2                               Tag          : 0
 Priority     : medium                          Age          : 7668sec
 IndirectID   : 0x80000001
 RelayNextHop : ::                              TunnelID     : 0x0
 Interface    : NULL0                           Flags        : R

 Destination  : 2001:db8:1::2                   PrefixLength : 128
 NextHop      : ::                              Preference   : 60
 Neighbour    : ::                              ProcessID    : 0
 Label        : NULL                            Protocol     : Static
 State        : Active Adv                      Cost         : 0
 Entry ID     : 262551844                       EntryFlags   : 0x80000040
 Reference Cnt: 2                               Tag          : 0
 Priority     : medium                          Age          : 7670sec
 IndirectID   : 0x0
 RelayNextHop : ::                              TunnelID     : 0x0
 Interface    : NULL0                           Flags        : D

 Destination  : FE80::                          PrefixLength : 10
 NextHop      : ::                              Preference   : 0
 Neighbour    : ::                              ProcessID    : 0
 Label        : NULL                            Protocol     : Direct
 State        : Active NoAdv                    Cost         : 0
 Entry ID     : 262551972                       EntryFlags   : 0x80010010
 Reference Cnt: 2                               Tag          : 0
 Priority     : high                            Age          : 104sec
 IndirectID   : 0x0
 RelayNextHop : ::                              TunnelID     : 0x0
 Interface    : NULL0                           Flags        : D

**Table 2** Description of the display ipv6 routing-table time-range verbose command output
Item	Description
Neighbour	IP address of a neighboring interface. :: indicates that the route is generated by a local device
ProcessID	Process ID of the routing protocol
Label	Label carried in a route
State	Status of the route: Active: an active route Invalid: an invalid route Inactive: an inactive route NoAdv: a route that cannot be advertised Adv: a route that can be advertised Del: a route to be deleted Relied: a route that is iterated to the next hop and outbound interface or a tunnel Stale: a route with the stale flag and is used in GR
Entry ID	ID of a route in the routing table
EntryFlags	Flag of a route
Reference Cnt	Number of times that the route is referenced
Tag	Administrative tag of the route The value is an integer ranging from 0 to 4294967295
Priority	Convergence priority of the route: low: The convergence priority of a route is low. medium: The convergence priority of a route is medium. high: The convergence priority of a route is high. critical: The convergence priority of a route is critical.
IndirectID	Indicates the keyword of indirect next hop, which is generated by the system and cannot be configured by users. If the route is not iterated, the value is 0x0. If the route is iterated, the value is not 0x0.
Age	Time after the route is generated