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show route forwarding-table

Syntax

show route forwarding-table<detail | extensive | summary> <ccc ccc-interface-name><destination><family family-name><label label><matching ip_prefix><multicast><vpn vpn>

Release Information

Command introduced in Junos OS Release 9.5 for EX Series switches.

Description

Display the Routing Engine's forwarding table, including the network-layer prefixes and their next hops. This command is used to help verify that the routing protocol process has relayed the correction information to the forwarding table. The Routing Engine constructs and maintains one or more routing tables. From the routing tables, the Routing Engine derives a table of active routes, called the forwarding table.

Options

none
—

Display the routes in the forwarding table.

detail | extensive | summary
—

(Optional) Display the specified level of output.

ccc
—

(Optional) Display the specified circuit cross-connect interface name for entries to match.

destination
—

(Optional) Display the destination prefix.

family family-name
—

(Optional) Display routing table entries for the specified family: ethernet-switching, inet, inet6, iso, mpls, vlan classification.

label label
—

(Optional) Display route entries for the specified label name.

matching ip_prefix
—

(Optional) Display route entries for the specified IP prefix.

multicast
—

(Optional) Display route entries for multicast routes.

vpn vpn
—

(Optional) Display route entries for the specified VPN.

Required Privilege Level

view

 

Related Documentation

 

List of Sample Output

show route forwarding-table
show route forwarding-table summary
show route forwarding-table extensive
show route forwarding-table ccc
show route forwarding-table family
show route forwarding-table label
show route forwarding-table matching
show route forwarding-table multicast

Output Fields

Table 1 lists the output fields for the show route forwarding-table command. Output fields are listed in the approximate order in which they appear. Field names might be abbreviated (as shown in parentheses) when no level of output is specified or when the detail keyword is used instead of the extensive keyword.

Table 1: show route forwarding-table Output Fields

Field Name

Field Description

Level of Output

Routing table

Name of the routing table (for example, inet, inet6, mpls).

All levels

Address family

Address family (for example, IP, IPv6, ISO, MPLS).

All levels

Destination

Destination of the route.

detail, extensive

Route Type (Type)

How the route was placed into the forwarding table. When the detail keyword is used, the route type might be abbreviated (as shown in parentheses):

  • cloned (clon)—(TCP or multicast only) Cloned route.
  • destination (dest)—Remote addresses directly reachable through an interface.
  • destination down (iddn)—Destination route for which the interface is unreachable.
  • interface cloned (ifcl)—Cloned route for which the interface is unreachable.
  • route down (ifdn)—Interface route for which the interface is unreachable.
  • ignore (ignr)—Ignore this route.
  • interface (intf)—Installed as a result of configuring an interface.
  • permanent (perm)—Routes installed by the kernel when the routing table is initialized.
  • user—Routes installed by the routing protocol process or as a result of the configuration.

All levels

Route reference (RtRef)

Number of routes to reference.

detail, extensive

Flags

Route type flags:

  • none—No flags are enabled.
  • accounting—Route has accounting enabled.
  • cached—Cache route.
  • incoming-iface interface-number —Check against incoming interface.
  • prefix load balance—Load balancing is enabled for this prefix.
  • sent to PFE—Route has been sent to the Packet Forwarding Engine.
  • static—Static route.

extensive

Nexthop

IP address of the next hop to the destination.

detail, extensive

Next hop type (Type)

Next-hop type. When the detail keyword is used, the next-hop type might be abbreviated (as indicated in parentheses):

  • broadcast (bcst)—Broadcast.
  • deny—Deny.
  • hold—Next hop is waiting to be resolved into a unicast or multicast type.
  • indexed (idxd)—Indexed next hop.
  • indirect (indr)—Indirect next hop.
  • local (locl)—Local address on an interface.
  • routed multicast (mcrt)—Regular multicast next hop
  • multicast (mcst)—Wire multicast next hop (limited to the LAN).
  • multicast discard (mdsc)—Multicast discard.
  • multicast group (mgrp) —Multicast group member.
  • receive (recv)—Receive.
  • reject (rjct) Discard. An ICMP unreachable message was sent.
  • resolve (rslv)—Resolving the next hop.
  • unicast (ucst)—Unicast.
  • unilist (ulst)—List of unicast next hops. A packet sent to this next hop goes to any next hop in the list.

detail, extensive

Index

Software index of the next hop that is used to route the traffic for a given prefix.

detail, extensive none

Route interface-index

Logical interface index from which the route is learned. For example, for interface routes, this is the logical interface index of the route itself. For static routes, this field is zero. For routes learned through routing protocols, this is the logical interface index from which the route is learned.

extensive

Reference (NhRef)

Number of routes that refer to this next hop.

none detail, extensive

Next-hop interface (Netif)

Interface used to reach the next hop.

none detail, extensive

Alternate forward nh index

Index number of the alternate next hop interface. Seen with multicast option only.

extensive

Next-hop L3 Interface

The next hop layer 3 interface. This option can be expressed as a VLAN name and is only seen with the multicast option.

extensive

Next-hop L2 Interfaces

The next hop layer 2 interfaces. Seen with multicast option only.

extensive

Sample Output

show route forwarding-table

user@switch> show route forwarding-table 
Routing table: default.inet
Internet:
Destination        Type RtRef Next hop           Type Index NhRef Netif
default            user     2 0:12:f2:21:cf:0    ucst   333     5 me0.0
default            perm     0                    rjct    36     2
0.0.0.0/32         perm     0                    dscd    34     1
2.2.2.0/24         intf     0                    rslv  1309     1 ae0.0
2.2.2.0/32         dest     0 2.2.2.0            recv  1307     1 ae0.0
2.2.2.1/32         dest     0 0:21:59:cc:89:c0   ucst  1320     1 ae0.0
2.2.2.2/32         intf     0 2.2.2.2            locl  1308     2
2.2.2.2/32         dest     0 2.2.2.2            locl  1308     2
2.2.2.255/32       dest     0 2.2.2.255          bcst  1306     1 ae0.0
3.3.3.0/24         intf     0                    rslv  1313     1 ae1.0
3.3.3.0/32         dest     0 3.3.3.0            recv  1311     1 ae1.0
3.3.3.1/32         intf     0 3.3.3.1            locl  1312     2
3.3.3.1/32         dest     0 3.3.3.1            locl  1312     2
3.3.3.2/32         dest     0 0:21:59:cc:89:c1   ucst  1321    24 ae1.0
3.3.3.255/32       dest     0 3.3.3.255          bcst  1310     1 ae1.0
4.4.4.0/24         user     0 3.3.3.2            ucst  1321    24 ae1.0
8.8.8.8/32         user     0 3.3.3.2            ucst  1321    24 ae1.0
9.9.9.9/32         intf     0 9.9.9.9            locl  1280     1
10.10.10.10/32     user     0 3.3.3.2            ucst  1321    24 ae1.0
10.93.8.0/21       intf     0                    rslv   323     1 me0.0
10.93.8.0/32       dest     0 10.93.8.0          recv   321     1 me0.0
10.93.13.238/32    intf     0 10.93.13.238       locl   322     2
10.93.13.238/32    dest     0 10.93.13.238       locl   322     2
10.93.15.254/32    dest     0 0:12:f2:21:cf:0    ucst   333     5 me0.0
10.93.15.255/32    dest     0 10.93.15.255       bcst   320     1 me0.0
14.14.14.0/24      ifdn     0                    rslv  1319     1 ge-0/0/25.0
14.14.14.0/32      iddn     0 14.14.14.0         recv  1317     1 ge-0/0/25.0
14.14.14.2/32      user     0                    rjct    36     2
14.14.14.2/32      intf     0 14.14.14.2         locl  1318     2
14.14.14.2/32      iddn     0 14.14.14.2         locl  1318     2
14.14.14.255/32    iddn     0 14.14.14.255       bcst  1316     1 ge-0/0/25.0
224.0.0.0/4        perm     1                    mdsc    35     1
224.0.0.1/32       perm     0 224.0.0.1          mcst    31     3
224.0.0.5/32       user     1 224.0.0.5          mcst    31     3
255.255.255.255/32 perm     0                    bcst    32     1

show route forwarding-table summary

user@switch> show route forwarding-table summary 
Routing table: default.inet
Internet:
         user:          6 routes
         perm:          5 routes
         intf:          8 routes
         dest:         12 routes
         ifdn:          1 routes
         iddn:          3 routes

show route forwarding-table extensive

user@switch> show route forwarding-table summary 
Routing table: default.inet [Index 0]
Internet:

Destination:  default
  Route type: user
  Route reference: 2                   Route interface-index: 0
  Flags: sent to PFE, rt nh decoupled
  Nexthop: 0:12:f2:21:cf:0
  Next-hop type: unicast               Index: 333      Reference: 5
  Next-hop interface: me0.0

Destination:  default
  Route type: permanent
  Route reference: 0                   Route interface-index: 0
  Flags: none
  Next-hop type: reject                Index: 36       Reference: 2

Destination:  0.0.0.0/32
  Route type: permanent
  Route reference: 0                   Route interface-index: 0
  Flags: sent to PFE
  Next-hop type: discard               Index: 34       Reference: 1

Destination:  2.2.2.0/24
  Route type: interface
  Route reference: 0                   Route interface-index: 66
  Flags: sent to PFE
  Next-hop type: resolve               Index: 1309     Reference: 1
  Next-hop interface: ae0.0

Destination:  2.2.2.0/32
  Route type: destination
  Route reference: 0                   Route interface-index: 66
  Flags: sent to PFE
  Nexthop: 2.2.2.0
  Next-hop type: receive               Index: 1307     Reference: 1
  Next-hop interface: ae0.0

Destination:  2.2.2.1/32
  Route type: destination
  Route reference: 0                   Route interface-index: 66
  Flags: sent to PFE
  Nexthop: 0:21:59:cc:89:c0
  Next-hop type: unicast               Index: 1320     Reference: 1
  Next-hop interface: ae0.0

Destination:  2.2.2.2/32
  Route type: interface
  Route reference: 0                   Route interface-index: 0
  Flags: sent to PFE
  Nexthop: 2.2.2.2
  Next-hop type: local                 Index: 1308     Reference: 2

Destination:  2.2.2.2/32
  Route type: destination
  Route reference: 0                   Route interface-index: 66
  Flags: none
  Nexthop: 2.2.2.2
  Next-hop type: local                 Index: 1308     Reference: 2

Destination:  2.2.2.255/32
  Route type: destination
  Route reference: 0                   Route interface-index: 66
  Flags: sent to PFE
  Nexthop: 2.2.2.255
  Next-hop type: broadcast             Index: 1306     Reference: 1
  Next-hop interface: ae0.0

show route forwarding-table ccc

user@switch> show route forwarding-table ccc ge-0/0/0.10 
Routing table: default.mpls
MPLS:
Destination        Type RtRef Next hop           Type Index NhRef Netif
ge-0/0/0.10  (CCC) user     0 3.3.3.2           Push 300112  1343     2 ae1.0

show route forwarding-table family

user@switch> show route forwarding-table family mpls 
Routing table: default.mpls
MPLS:
Destination        Type RtRef Next hop           Type Index NhRef Netif
default            perm     0                    dscd    50     1
0                  user     0                    recv    49     3
1                  user     0                    recv    49     3
2                  user     0                    recv    49     3
299776             user     0                   Pop    1334     2 ge-0/0/0.10
299792             user     0                   Pop    1339     2 ge-0/0/0.14
299808             user     0                   Pop    1341     2 ge-0/0/0.2
299824             user     0                   Pop    1344     2 ge-0/0/0.11
299840             user     0                   Pop    1345     2 ge-0/0/0.13
299856             user     0                   Pop    1346     2 ge-0/0/0.18
299872             user     0                   Pop    1347     2 ge-0/0/0.16
299888             user     0                   Pop    1348     2 ge-0/0/0.7
299904             user     0                   Pop    1349     2 ge-0/0/0.20
299920             user     0                   Pop    1350     2 ge-0/0/0.19
299936             user     0                   Pop    1351     2 ge-0/0/0.17
299952             user     0                   Pop    1352     2 ge-0/0/0.9
299968             user     0                   Pop    1353     2 ge-0/0/0.1
299984             user     0                   Pop    1354     2 ge-0/0/0.12
300000             user     0                   Pop    1355     2 ge-0/0/0.8
300016             user     0                   Pop    1356     2 ge-0/0/0.4
300032             user     0                   Pop    1357     2 ge-0/0/0.5
300048             user     0                   Pop    1358     2 ge-0/0/0.3
300064             user     0                   Pop    1359     2 ge-0/0/0.15
ge-0/0/0.1  (CCC)  user     0 3.3.3.2           Push 300064  1340     2 ae1.0
ge-0/0/0.2  (CCC)  user     0 3.3.3.2           Push 299872  1328     2 ae1.0
ge-0/0/0.3  (CCC)  user     0 3.3.3.2           Push 299792  1323     2 ae1.0
ge-0/0/0.4  (CCC)  user     0 3.3.3.2           Push 300016  1337     2 ae1.0
ge-0/0/0.5  (CCC)  user     0 3.3.3.2           Push 299824  1325     2 ae1.0
ge-0/0/0.7  (CCC)  user     0 3.3.3.2           Push 299920  1331     2 ae1.0
ge-0/0/0.8  (CCC)  user     0 3.3.3.2           Push 299840  1326     2 ae1.0
ge-0/0/0.9  (CCC)  user     0 3.3.3.2           Push 299888  1329     2 ae1.0
ge-0/0/0.10  (CCC) user     0 3.3.3.2           Push 300112  1343     2 ae1.0
ge-0/0/0.11  (CCC) user     0 3.3.3.2           Push 299776  1322     2 ae1.0
ge-0/0/0.12  (CCC) user     0 3.3.3.2           Push 299952  1333     2 ae1.0
ge-0/0/0.13  (CCC) user     0 3.3.3.2           Push 300096  1342     2 ae1.0
ge-0/0/0.14  (CCC) user     0 3.3.3.2           Push 299984  1335     2 ae1.0
ge-0/0/0.15  (CCC) user     0 3.3.3.2           Push 299936  1332     2 ae1.0
ge-0/0/0.16  (CCC) user     0 3.3.3.2           Push 299808  1324     2 ae1.0
ge-0/0/0.17  (CCC) user     0 3.3.3.2           Push 300000  1336     2 ae1.0
ge-0/0/0.18  (CCC) user     0 3.3.3.2           Push 300032  1338     2 ae1.0
ge-0/0/0.19  (CCC) user     0 3.3.3.2           Push 299904  1330     2 ae1.0
ge-0/0/0.20  (CCC) user     0 3.3.3.2           Push 299856  1327     2 ae1.0

show route forwarding-table label

user@switch> show route forwarding-table label 29976 
Routing table: default.mpls
MPLS:
Destination        Type RtRef Next hop           Type Index NhRef Netif
299776             user     0                   Pop    1334     2 ge-0/0/0.10

show route forwarding-table matching

user@switch> show route forwarding-table matching 3 
Routing table: default.inet
Internet:

show route forwarding-table multicast

user@switch> show route forwarding-table multicast 
Routing table: default.inet
Internet:
Destination        Type RtRef Next hop           Type Index NhRef Netif
224.0.0.0/4        perm     1                    mdsc    35     1
224.0.0.1/32       perm     0 224.0.0.1          mcst    31     3
224.0.0.5/32       user     1 224.0.0.5          mcst    31     3

Routing table: __master.anon__.inet
Internet:
Destination        Type RtRef Next hop           Type Index NhRef Netif
224.0.0.0/4        perm     0                    mdsc  1289     1
224.0.0.1/32       perm     0 224.0.0.1          mcst  1285     1

Routing table: default.inet6
Internet6:
Destination        Type RtRef Next hop           Type Index NhRef Netif
ff00::/8           perm     0                    mdsc    43     1
ff02::1/128        perm     0 ff02::1            mcst    39     1

Published: 2014-09-26

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