show route forwarding-table
Syntax
show route forwarding-table <detail | extensive | summary> <all> <ccc interface-name> <destination destination-prefix> <family family | matching matching> <interface-name interface-name> <label name> <matching matching> <multicast> <table (default | logical-system-name/routing-instance-name | routing-instance-name)> <vlan (all | vlan-name)> <vpn vpn>
Syntax (MX Series Routers)
show route forwarding-table <detail | extensive | summary> <all> <bridge-domain (all | domain-name)> <ccc interface-name> <destination destination-prefix> <family family | matching matching> <interface-name interface-name> <label name> <learning-vlan-id learning-vlan-id> <matching matching> <multicast> <table (default | logical-system-name/routing-instance-name | routing-instance-name)> <vlan (all | vlan-name)> <vpn vpn>
Syntax (TX Matrix and TX Matrix Plus Routers)
show route forwarding-table <detail | extensive | summary> <all> <ccc interface-name> <destination destination-prefix> <family family | matching matching> <interface-name interface-name> <matching matching> <label name> <lcc number> <multicast> <table routing-instance-name> <vpn vpn>
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.
The Routing Engine copies the forwarding table to the
Packet Forwarding Engine, the part of the router that is responsible
for forwarding packets. To display the entries in the Packet Forwarding
Engine's forwarding table, use the show pfe route
command.
Options
none | Display the routes
in the forwarding tables. By default, the |
detail | extensive | summary | (Optional) Display the specified level of output. |
all | (Optional) Display routing table entries for all forwarding tables, including private, or internal, tables. |
bridge-domain (all | bridge-domain-name) | (MX Series routers only) (Optional) Display route entries for all bridge domains or the specified bridge domain. |
ccc interface-name | (Optional) Display route entries for the specified circuit cross-connect interface. |
destination destination-prefix | (Optional) Destination prefix. |
family family | (Optional) Display routing table entries for the specified
family: |
interface-name interface-name | (Optional) Display routing table entries for the specified interface. |
label name | (Optional) Display route entries for the specified label. |
lcc number | (TX Matrix and TX matrix Plus routers only) (Optional) On a routing matrix composed of a TX Matrix router and T640 routers, display information for the specified T640 router (or line-card chassis) connected to the TX Matrix router. On a routing matrix composed of the TX Matrix Plus router and T1600 or T4000 routers, display information for the specified router (line-card chassis) connected to the TX Matrix Plus router. Replace number with the following values depending on the LCC configuration:
|
learning-vlan-id learning-vlan-id | (MX Series routers only) (Optional) Display learned information for all VLANs or for the specified VLAN. |
matching matching | (Optional) Display routing table entries matching the specified prefix or prefix length. |
multicast | (Optional) Display routing table entries for multicast routes. |
table | (Optional) Display
route entries for all the routing tables in the main routing instance
or for the specified routing instance. If your device supports logical
systems, you can also display route entries for the specified logical
system and routing instance. To view the routing instances on your
device, use the |
vlan (all | vlan-name) | (Optional) Display information for all VLANs or for the specified VLAN. |
vpn vpn | (Optional) Display routing table entries for a specified VPN. |
Required Privilege Level
view
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.
Field Name |
Field Description |
Level of Output |
---|---|---|
Logical system |
Name of the logical system. This field is displayed if
you specify the |
All levels |
Routing table |
Name of the routing table (for example, inet, inet6, mpls). |
All levels |
Enabled protocols |
The features and protocols that have been enabled for a given routing table. This field can contain the following values:
|
All levels |
Address family |
Address family (for example, |
All levels |
Destination |
Destination of the route. |
|
Route Type (Type) |
How the route was placed into the
forwarding table. When the
|
All levels |
Route Reference (RtRef) |
Number of routes to reference. |
|
Flags |
Route type flags:
|
|
Next hop |
IP address of the next hop to the destination. Note:
For static routes that use point-to-point (P2P) outgoing interfaces, the next-hop address is not displayed in the output. |
|
Next hop Type (Type) |
Next-hop type. When the
|
|
Index |
Software index of the next hop that is used to route the traffic for a given prefix. |
|
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. |
|
Reference (NhRef) |
Number of routes that refer to this next hop. |
|
Next-hop interface (Netif) |
Interface used to reach the next hop. |
|
Weight |
Value used to distinguish primary,
secondary, and fast reroute backup routes. Weight information is available
when MPLS label-switched path (LSP) link protection, node-link protection,
or fast reroute is enabled, or when the standby state is enabled for
secondary paths. A lower weight value is preferred. Among routes with
the same weight value, load balancing is possible (see the |
|
Balance |
Balance coefficient indicating how traffic of unequal cost is distributed among next hops when a router is performing unequal-cost load balancing. This information is available when you enable BGP multipath load balancing. |
|
RPF interface |
List of interfaces from which the
prefix can be accepted. Reverse path forwarding (RPF) information
is displayed only when |
|
Sample Output
- show route forwarding-table
- show route forwarding-table detail
- show route forwarding-table extensive (RPF)
show route forwarding-table
user@host> show route forwarding-table Routing table: default.inet Internet: Destination Type RtRef Next hop Type Index NhRef Netif default perm 0 rjct 46 4 0.0.0.0/32 perm 0 dscd 44 1 172.16.1.0/24 ifdn 0 rslv 608 1 ge-2/0/1.0 172.16.1.0/32 iddn 0 172.16.1.0 recv 606 1 ge-2/0/1.0 172.16.1.1/32 user 0 rjct 46 4 172.16.1.1/32 intf 0 172.16.1.1 locl 607 2 172.16.1.1/32 iddn 0 172.16.1.1 locl 607 2 172.16.1.255/32 iddn 0 ff:ff:ff:ff:ff:ff bcst 605 1 ge-2/0/1.0 10.0.0.0/24 intf 0 rslv 616 1 ge-2/0/0.0 10.0.0.0/32 dest 0 10.0.0.0 recv 614 1 ge-2/0/0.0 10.0.0.1/32 intf 0 10.0.0.1 locl 615 2 10.0.0.1/32 dest 0 10.0.0.1 locl 615 2 10.0.0.255/32 dest 0 10.0.0.255 bcst 613 1 ge-2/0/0.0 10.1.1.0/24 ifdn 0 rslv 612 1 ge-2/0/1.0 10.1.1.0/32 iddn 0 10.1.1.0 recv 610 1 ge-2/0/1.0 10.1.1.1/32 user 0 rjct 46 4 10.1.1.1/32 intf 0 10.1.1.1 locl 611 2 10.1.1.1/32 iddn 0 10.1.1.1 locl 611 2 10.1.1.255/32 iddn 0 ff:ff:ff:ff:ff:ff bcst 609 1 ge-2/0/1.0 10.206.0.0/16 user 0 10.209.63.254 ucst 419 20 fxp0.0 10.209.0.0/16 user 1 0:12:1e:ca:98:0 ucst 419 20 fxp0.0 10.209.0.0/18 intf 0 rslv 418 1 fxp0.0 10.209.0.0/32 dest 0 10.209.0.0 recv 416 1 fxp0.0 10.209.2.131/32 intf 0 10.209.2.131 locl 417 2 10.209.2.131/32 dest 0 10.209.2.131 locl 417 2 10.209.17.55/32 dest 0 0:30:48:5b:78:d2 ucst 435 1 fxp0.0 10.209.63.42/32 dest 0 0:23:7d:58:92:ca ucst 434 1 fxp0.0 10.209.63.254/32 dest 0 0:12:1e:ca:98:0 ucst 419 20 fxp0.0 10.209.63.255/32 dest 0 10.209.63.255 bcst 415 1 fxp0.0 10.227.0.0/16 user 0 10.209.63.254 ucst 419 20 fxp0.0 ... Routing table: iso ISO: Destination Type RtRef Next hop Type Index NhRef Netif default perm 0 rjct 27 1 47.0005.80ff.f800.0000.0108.0003.0102.5524.5220.00 intf 0 locl 28 1 Routing table: inet6 Internet6: Destination Type RtRef Next hop Type Index NhRef Netif default perm 0 rjct 6 1 ff00::/8 perm 0 mdsc 4 1 ff02::1/128 perm 0 ff02::1 mcst 3 1 Routing table: ccc MPLS: Interface.Label Type RtRef Next hop Type Index NhRef Netif default perm 0 rjct 16 1 100004(top)fe-0/0/1.0
show route forwarding-table detail
user@host> show route forwarding-table detail Routing table: inet Internet: Destination Type RtRef Next hop Type Index NhRef Netif default user 2 0:90:69:8e:b1:1b ucst 132 4 fxp0.0 default perm 0 rjct 14 1 10.1.1.0/24 intf 0 ff.3.0.21 ucst 322 1 so-5/3/0.0 10.1.1.0/32 dest 0 10.1.1.0 recv 324 1 so-5/3/0.0 10.1.1.1/32 intf 0 10.1.1.1 locl 321 1 10.1.1.255/32 dest 0 10.1.1.255 bcst 323 1 so-5/3/0.0 10.21.21.0/24 intf 0 ff.3.0.21 ucst 326 1 so-5/3/0.0 10.21.21.0/32 dest 0 10.21.21.0 recv 328 1 so-5/3/0.0 10.21.21.1/32 intf 0 10.21.21.1 locl 325 1 10.21.21.255/32 dest 0 10.21.21.255 bcst 327 1 so-5/3/0.0 127.0.0.1/32 intf 0 127.0.0.1 locl 320 1 172.17.28.19/32 clon 1 192.168.4.254 ucst 132 4 fxp0.0 172.17.28.44/32 clon 1 192.168.4.254 ucst 132 4 fxp0.0 ... Routing table: private1__.inet Internet: Destination Type RtRef Next hop Type Index NhRef Netif default perm 0 rjct 46 1 10.0.0.0/8 intf 0 rslv 136 1 fxp1.0 10.0.0.0/32 dest 0 10.0.0.0 recv 134 1 fxp1.0 10.0.0.4/32 intf 0 10.0.0.4 locl 135 2 10.0.0.4/32 dest 0 10.0.0.4 locl 135 2 ... Routing table: iso ISO: Destination Type RtRef Next hop Type Index NhRef Netif default perm 0 rjct 38 1 Routing table: inet6 Internet6: Destination Type RtRef Next hop Type Index NhRef Netif default perm 0 rjct 22 1 ff00::/8 perm 0 mdsc 21 1 ff02::1/128 perm 0 ff02::1 mcst 17 1 ... Routing table: mpls MPLS: Destination Type RtRef Next hop Type Index NhRef Netif default perm 0 rjct 28 1
show route forwarding-table destination extensive (EVPN Type 5 route with Type 2 and Type 5 route coexistence)
user@device> show route forwarding-table destination 10.1.1.20 table vrf1 extensive Routing table: vrf1.inet [Index 9] Internet: Destination: 10.1.1.20/32 Route type: user Route reference: 0 Route interface-index: 0 Multicast RPF nh index: 0 P2mpidx: 0 Flags: sent to PFE, VxLAN Local Nexthop: Next-hop type: composite Index: 2694 Reference: 7 Next-hop type: indirect Index: 524326 Reference: 2 Next-hop type: unilist Index: 524288 Reference: 5 Nexthop: 10.1.1.1 Next-hop type: unicast Index: 1724 Reference: 15 Next-hop interface: xe-0/0/1.0 Weight: 0x0 Nexthop: 10.1.1.4 Next-hop type: unicast Index: 1725 Reference: 15 Next-hop interface: xe-0/0/4.0 Weight: 0x0
show route forwarding-table extensive (RPF)
The next example is based on the following configuration, which enables an RPF check on all routes that are learned from this interface, including the interface route:
so-1/1/0 { unit 0 { family inet { rpf-check; address 192.0.2.2/30; } } }
Release Information
Command introduced before Junos OS Release 7.4.
Option bridge-domain
introduced in Junos OS Release
7.5
Option learning-vlan-id
introduced in Junos OS Release
8.4
Options all
and vlan
introduced in Junos
OS Release 9.6.