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show route extensive

Syntax

show route extensive
<destination-prefix>
<logical-system (all | logical-system-name)>

Release Information

Command introduced before JUNOS Release 7.4.

Description

Display extensive information about the active entries in the routing tables.

Options

none — Display all active entries in the routing table on all logical systems.

destination-prefix — (Optional) Display active entries for the specified address or range of addresses.

logical-system (all | logical-system-name) — (Optional) Perform this operation on all logical systems or on a particular logical system.

Required Privilege Level

view

List of Sample Output

show route extensive
show route extensive (Access Route)
show route extensive (Route Reflector)

Output Fields

Table 102 describes the output fields for the show route extensive command. Output fields are listed in the approximate order in which they appear.

Table 102: show route extensive Output Fields

Field Name

Field Description

routing-table-name

Name of the routing table (for example, inet.0).

number destinations

Number of destinations for which there are routes in the routing table.

number routes

Number of routes in the routing table and total number of routes in the following states:

  • active (routes that are active).
  • holddown (routes that are in the pending state before being declared inactive).
  • hidden (routes that are not used because of a routing policy).

route-destination (entry, announced)

Route destination (for example:10.0.0.1/24). The entry value is the number of route for this destination, and the announced value is the number of routes being announced for this destination. Sometimes the route destination is presented in another format, such as:

  • MPLS-label (for example, 80001 ).
  • interface-name (for example, ge-1/0/2 ).
  • neighbor-address:control-word-status:encapsulation type:vc-id:source (Layer 2 circuit only; for example, 10.1.1.195:NoCtrlWord:1:1:Local/96).
  • neighbor-address—Address of the neighbor.
  • control-word-status—Whether the use of the control word has been negotiated for this virtual circuit: NoCtrlWord or CtrlWord.
  • encapsulation type—Type of encapsulation, represented by a number: (1) Frame Relay DLCI, (2) ATM AAL5 VCC transport, (3) ATM transparent cell transport, (4) Ethernet, (5) VLAN Ethernet, (6) HDLC, (7) PPP, (8) ATM VCC cell transport, (10) ATM VPC cell transport.
  • vc-id—Virtual circuit identifier.
  • source—Source of the advertisement: Local or Remote.

TSI

Protocol header information.

label stacking

(Next-to-the-last-hop router for MPLS only) Depth of the Multiprotocol Label Switching (MPLS) label stack, where the label-popping operation is needed to remove one or more labels from the top of the stack. A pair of routes is displayed, because the pop operation is performed only when the stack depth is two or more labels.

  • S=0 route indicates that a packet with an incoming label stack depth of two or more exits this router with one fewer label (the label-popping operation is performed).
  • If there is no S= information, the route is a normal MPLS route, which has a stack depth of 1 (the label-popping operation is not performed).

[protocol, preference]

Protocol from which the route was learned and the preference value for the route.

  • +—A plus sign indicates the active route, which is the route installed from the routing table into the forwarding table.
  • - —A hyphen indicates the last active route.
  • *—An asterisk indicates that the route is both the active and the last active route. An asterisk before a to line indicates the best subpath to the route.

In every routing metric except for the BGP LocalPref attribute, a lesser value is preferred. In order to use common comparison routines, JUNOS software stores the 1's complement of the LocalPref value in the Preference2 field. For example, if the LocalPref value for Route 1 is 100, the Preference2 value is -101. If the LocalPref value for Route 2 is 155, the Preference2 value is -156. Route 2 is preferred because it has a higher LocalPref value and a lower Preference2 value.

Level

(IS-IS only). In IS-IS, a single autonomous system (AS) can be divided into smaller groups called areas. Routing between areas is organized hierarchically, allowing a domain to be administratively divided into smaller areas. This organization is accomplished by configuring Level 1 and Level 2 intermediate systems. Level 1 systems route within an area; when the destination is outside an area, they route toward a Level 2 system. Level 2 intermediate systems route between areas and toward other ASs.

Route Distinguisher

IP subnet augmented with a 64-bit prefix.

Next-hop type

Type of next hop. For a description of possible values for this field, see Table 97.

Next-hop reference count

Number of references made to the next hop.

Source

IP address of the route source.

Next hop

Network layer address of the directly reachable neighboring system.

via

Interface used to reach the next hop If there is more than one interface available to the next hop, the name of interface that is actually used is followed by the word Selected. This field can also contain the following information:

  • Weight—Value used to distinguish primary, secondary, and fast reroute backup routes. Weight information is available when Multiprotocol Label Switching (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.
  • 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 Border Gateway Protocol (BGP) multipath load balancing.

Label-switched-path lsp-path-name

Name of the label-switched path (LSP) used to reach the next hop.

Label operation

MPLS label and operation occurring at this router. The operation can be pop (where a label is removed from the top of the stack), push (where another label is added to the label stack), or swap (where a label is replaced by another label).

Offset

Whether the metric has been increased or decreased by an offset value.

Interface

(Local only) Local interface name.

Protocol next hop

Network layer address of the remote router that advertised the prefix. This address is used to recursively derive a forwarding next hop.

label-operation

MPLS label and operation occurring at this router. The operation can be pop (where a label is removed from the top of the stack), push (where another label is added to the label stack), or swap (where a label is replaced by another label).

Indirect next hop

Index designation used to specify the mapping between protocol next hops, tags, kernel export policy, and the forwarding next hops.

State

State of the route (a route can be in more than one state). See Table 98.

Inactive reason

If the route is inactive, the reason for its current state is indicated.

Local AS

Autonomous system (AS) number of the local router.

Age

How long the route has been known.

Metric

Metric value for an aggregate, generated, or static route. There can be up to four metric values, starting with metric (for the first metric value) and continuing with metric2, metric3, and metric4. The range of values is 1 to 65,535.

MED-plus-IGP

Metric value for BGP path selection to which the IGP cost to the next-hop destination has been added.

Task

Name of the protocol that has added the route.

Announcement bits

List of protocols that announce this route. n-Resolve inet indicates that the route is used for route resolution for next hops found in the routing table n is an index used by Juniper Networks Customer Support only.

AS path

AS path through which the route was learned. The letters at the end of the AS path indicate the path origin, providing an indication of the state of the route at the point at which the AS path was originated:

  • I—IGP.
  • E—EGP.
  • ?—Incomplete; typically, the AS path was aggregated.

When AS path numbers are included in the route, the format is as follows:

  • [ ]—Brackets enclose the local AS number associated with the AS path if more than one AS number is configured on the router, or if AS path prepending is configured.
  • { }—Braces enclose AS sets, which are groups of AS numbers in which the order does not matter. A set commonly results from route aggregation. The numbers in each AS set are displayed in ascending order.
  • ( )—Parentheses enclose a confederation.
  • ( [ ] )—Parentheses and brackets enclose a confederation set.

AS path: I <Originator>

(For router reflected output only) Originator ID attribute set by the route reflector.

VC Label

MPLS label assigned to the Layer 2 circuit virtual connection.

MTU

Maximum transmission unit (MTU) of the Layer 2 circuit.

VLAN ID

VLAN identifier of the Layer 2 circuit.

Cluster list

(For router reflected output only) Cluster ID sent by the route reflector.

Originator ID

(For router reflected output only) Address of router that originally sent the route to the route reflector.

Prefixes bound to route

Forwarding Equivalent Class (FEC) bound to this route. Applicable only to routes installed by LDP.

Communities

Community path attribute for the route. See Table 99 for all possible values for this field.

Layer2-info: encaps

Layer 2 encapsulation (for example, VPLS).

control flags

Control flags: none or Site Down.

mtu

Maximum transmission unit (MTU) information.

Label-Base, range

First label in a block of labels and label block size. A remote PE router uses this first label when sending traffic toward the advertising PE router.

status vector

Layer 2 VPN and VPLS network layer reachability information (NLRI).

Localpref

Local preference value included in the route.

Router ID

BGP router ID as advertised by the neighbor in the open message.

Primary Routing Table

In a routing table group, the name of the primary routing table in which the route resides.

Secondary Tables

In a routing table group, the name of one or more secondary tables in which the route resides.

Originating RIB

Name of the routing table whose active route was used to determine the forwarding next-hop entry in the resolution database. For example, in the case of inet.0 resolving via inet.0 and inet.3, this field indicates which routing table, inet.0 or inet.3, provided the best path for a particular prefix.

Node path count

Number of nodes in the path.

Forwarding nexthops

Number of forwarding next hops. The forwarding next hop is the network layer address of the directly reachable neighboring system (if applicable) and the interface used to reach it.

Sample Output

show route extensive

user@host> show route extensive 
inet.0: 22 destinations, 23 routes (21 active, 0 holddown, 1 hidden)
10.10.0.0/16 (1 entry, 1 announced)
TSI:
KRT in-kernel 10.10.0.0/16 -> {192.168.71.254}
        *Static Preference: 5
                Next-hop reference count: 29
                Next hop: 192.168.71.254 via fxp0.0, selected
                State: <Active NoReadvrt Int Ext>
                Local AS:    69 
                Age: 1:34:06 
                Task: RT
                Announcement bits (2): 0-KRT 3-Resolve tree 2 
                AS path: I

10.31.1.0/30 (2 entries, 1 announced)
        *Direct Preference: 0
                Next hop type: Interface
                Next-hop reference count: 2
                Next hop: via so-0/3/0.0, selected
                State: <Active Int>
                Local AS:    69 
                Age: 1:32:40 
                Task: IF
                Announcement bits (1): 3-Resolve tree 2 
                AS path: I
         OSPF   Preference: 10
                Next-hop reference count: 1
                Next hop: via so-0/3/0.0, selected
                State: <Int>
                Inactive reason: Route Preference
                Local AS:    69 
                Age: 1:32:40    Metric: 1 
                Area: 0.0.0.0
                Task: OSPF
                AS path: I

10.31.1.1/32 (1 entry, 1 announced)
        *Local  Preference: 0
                Next hop type: Local
                Next-hop reference count: 7
                Interface: so-0/3/0.0
                State: <Active NoReadvrt Int>
                Local AS:    69 
                Age: 1:32:43 
                Task: IF
                Announcement bits (1): 3-Resolve tree 2 
                AS path: I

...

10.31.2.0/30 (1 entry, 1 announced)
TSI:
KRT in-kernel 10.31.2.0/30 -> {10.31.1.6}
        *OSPF   Preference: 10
                Next-hop reference count: 9
                Next hop: via so-0/3/0.0
                Next hop: 10.31.1.6 via ge-3/1/0.0, selected
                State: <Active Int>
                Local AS:    69 
                Age: 1:32:19    Metric: 2 
                Area: 0.0.0.0
                Task: OSPF
                Announcement bits (2): 0-KRT 3-Resolve tree 2 
                AS path: I

...

224.0.0.2/32 (1 entry, 1 announced)
TSI:
KRT in-kernel 224.0.0.2/32 -> {}
        *PIM    Preference: 0
                Next-hop reference count: 18
                State: <Active NoReadvrt Int>
                Local AS:    69 
                Age: 1:34:08 
                Task: PIM Recv
                Announcement bits (2): 0-KRT 3-Resolve tree 2 
                AS path: I

...

224.0.0.22/32 (1 entry, 1 announced)
TSI:
KRT in-kernel 224.0.0.22/32 -> {}
        *IGMP   Preference: 0
                Next-hop reference count: 18
                State: <Active NoReadvrt Int>
                Local AS:    69 
                Age: 1:34:06 
                Task: IGMP
                Announcement bits (2): 0-KRT 3-Resolve tree 2 
                AS path: I

inet.3: 2 destinations, 2 routes (2 active, 0 holddown, 0 hidden)

10.255.70.103/32 (1 entry, 1 announced)
        State: <FlashAll>
        *RSVP   Preference: 7
                Next-hop reference count: 6
                Next hop: 10.31.1.6 via ge-3/1/0.0 weight 0x1, selected
                Label-switched-path green-r1-r3
                Label operation: Push 100096
                State: <Active Int>
                Local AS:    69 
                Age: 1:28:12    Metric: 2 
                Task: RSVP
                Announcement bits (2): 1-Resolve tree 1 2-Resolve tree 2 
                AS path: I

10.255.71.238/32 (1 entry, 1 announced)
        State: <FlashAll>
        *RSVP   Preference: 7
                Next-hop reference count: 6
                Next hop: via so-0/3/0.0 weight 0x1, selected
                Label-switched-path green-r1-r2
                State: <Active Int>
                Local AS:    69 
                Age: 1:28:12    Metric: 1 
                Task: RSVP
                Announcement bits (2): 1-Resolve tree 1 2-Resolve tree 2 
                AS path: I

private1__.inet.0: 2 destinations, 3 routes (2 active, 0 holddown, 0 hidden)

...

iso.0: 1 destinations, 1 routes (1 active, 0 holddown, 0 hidden)

47.0005.80ff.f800.0000.0108.0001.0102.5507.1052/152 (1 entry, 0 announced)
        *Direct Preference: 0
                Next hop type: Interface
                Next-hop reference count: 1
                Next hop: via lo0.0, selected
                State: <Active Int>
                Local AS:    69 
                Age: 1:34:07 
                Task: IF
                AS path: I

mpls.0: 5 destinations, 5 routes (5 active, 0 holddown, 0 hidden)

0   (1 entry, 1 announced)
TSI:
KRT in-kernel 0      /36 -> {}
        *MPLS   Preference: 0
                Next hop type: Receive
                Next-hop reference count: 6
                State: <Active Int>
                Local AS:    69 
                Age: 1:34:08    Metric: 1 
                Task: MPLS
                Announcement bits (1): 0-KRT 
                AS path: I

...

800010 (1 entry, 1 announced)

TSI:
KRT in-kernel 800010 /36 -> {vt-3/2/0.32769}
        *VPLS   Preference: 7
                Next-hop reference count: 2
                Next hop: via vt-3/2/0.32769, selected
                Label operation: Pop      
                State: <Active Int>
                Age: 1:31:53 
                Task: Common L2 VC
                Announcement bits (1): 0-KRT 
                AS path: I

vt-3/2/0.32769 (1 entry, 1 announced)
TSI:
KRT in-kernel vt-3/2/0.32769.0      /16 -> {indirect(1048574)}
        *VPLS   Preference: 7
                Next-hop reference count: 2
                Next hop: 10.31.1.6 via ge-3/1/0.0 weight 0x1, selected
                Label-switched-path green-r1-r3
                Label operation: Push 800012, Push 100096(top)
                Protocol next hop: 10.255.70.103
                Push 800012
                Indirect next hop: 87272e4 1048574
                State: <Active Int>
                Age: 1:31:53    Metric2: 2 
                Task: Common L2 VC
                Announcement bits (2): 0-KRT 1-Common L2 VC 
                AS path: I
                Communities: target:11111:1 Layer2-info: encaps:VPLS, 
                control flags:, mtu: 0
                Indirect next hops: 1
                        Protocol next hop: 10.255.70.103 Metric: 2
                        Push 800012
                        Indirect next hop: 87272e4 1048574
                        Indirect path forwarding next hops: 1
                                Next hop: 10.31.1.6 via ge-3/1/0.0 weight 0x1
                        10.255.70.103/32 Originating RIB: inet.3
                          Metric: 2                       Node path count: 1
                          Forwarding nexthops: 1
                                Nexthop: 10.31.1.6 via ge-3/1/0.0

inet6.0: 5 destinations, 5 routes (5 active, 0 holddown, 0 hidden)

abcd::10:255:71:52/128 (1 entry, 0 announced)
        *Direct Preference: 0
                Next hop type: Interface
                Next-hop reference count: 1
                Next hop: via lo0.0, selected
                State: <Active Int>
                Local AS:    69 
                Age: 1:34:07 
                Task: IF
                AS path: I

fe80::280:42ff:fe10:f179/128 (1 entry, 0 announced)
        *Direct Preference: 0
                Next hop type: Interface
                Next-hop reference count: 1
                Next hop: via lo0.0, selected
                State: <Active NoReadvrt Int>
                Local AS:    69 
                Age: 1:34:07 
                Task: IF
                AS path: I

ff02::2/128 (1 entry, 1 announced)
TSI:
KRT in-kernel ff02::2/128 -> {}
        *PIM    Preference: 0
                Next-hop reference count: 18
                State: <Active NoReadvrt Int>
                Local AS:    69 
                Age: 1:34:08 
                Task: PIM Recv6
                Announcement bits (1): 0-KRT 
                AS path: I

ff02::d/128 (1 entry, 1 announced)
TSI:
KRT in-kernel ff02::d/128 -> {}
        *PIM    Preference: 0
                Next-hop reference count: 18
                State: <Active NoReadvrt Int>
                Local AS:    69 
                Age: 1:34:08 
                Task: PIM Recv6
                Announcement bits (1): 0-KRT 
                AS path: I

ff02::16/128 (1 entry, 1 announced)
TSI:
KRT in-kernel ff02::16/128 -> {}
        *MLD    Preference: 0
                Next-hop reference count: 18
                State: <Active NoReadvrt Int>
                Local AS:    69 
                Age: 1:34:06 
                Task: MLD
                Announcement bits (1): 0-KRT 
                AS path: I

private.inet6.0: 1 destinations, 1 routes (1 active, 0 holddown, 0 hidden)

fe80::280:42ff:fe10:f179/128 (1 entry, 0 announced)
        *Direct Preference: 0
                Next hop type: Interface
                Next-hop reference count: 1
                Next hop: via lo0.16385, selected
                State: <Active NoReadvrt Int>
                Age: 1:34:07 
                Task: IF
                AS path: I

green.l2vpn.0: 4 destinations, 4 routes (4 active, 0 holddown, 0 hidden)
                    
10.255.70.103:1:3:1/96 (1 entry, 1 announced)
        *BGP    Preference: 170/-101
                Route Distinguisher: 10.255.70.103:1
                Next-hop reference count: 7
                Source: 10.255.70.103
                Protocol next hop: 10.255.70.103
                Indirect next hop: 2 no-forward
                State: <Secondary Active Int Ext>
                Local AS:    69 Peer AS:    69
                Age: 1:28:12    Metric2: 1 
                Task: BGP_69.10.255.70.103+179
                Announcement bits (1): 0-green-l2vpn 
                AS path: I
                Communities: target:11111:1 Layer2-info: encaps:VPLS, 
                control flags:, mtu: 0
                Label-base: 800008, range: 8
                Localpref: 100
                Router ID: 10.255.70.103
                Primary Routing Table bgp.l2vpn.0

10.255.71.52:1:1:1/96 (1 entry, 1 announced)
TSI:
Page 0 idx 0 Type 1 val 8699540
        *L2VPN  Preference: 170/-1
                Next-hop reference count: 5
                Protocol next hop: 10.255.71.52
                Indirect next hop: 0 -
                State: <Active Int Ext>
                Age: 1:34:03    Metric2: 1 
                Task: green-l2vpn
                Announcement bits (1): 1-BGP.0.0.0.0+179 
                AS path: I
                Communities: Layer2-info: encaps:VPLS, control flags:Site-Down,                 mtu: 0
                Label-base: 800016, range: 8, status-vector: 0x9F 

10.255.71.52:1:5:1/96 (1 entry, 1 announced)
TSI:
Page 0 idx 0 Type 1 val 8699528
        *L2VPN  Preference: 170/-101
                Next-hop reference count: 5
                Protocol next hop: 10.255.71.52
                Indirect next hop: 0 -
                State: <Active Int Ext>
                Age: 1:34:03    Metric2: 1 
                Task: green-l2vpn
                Announcement bits (1): 1-BGP.0.0.0.0+179 
                AS path: I
                Communities: Layer2-info: encaps:VPLS, control flags:, mtu: 0
                Label-base: 800008, range: 8, status-vector: 0x9F 

...

l2circuit.0: 2 destinations, 2 routes (2 active, 0 holddown, 0 hidden)

TSI:

10.245.255.63:CtrlWord:4:3:Local/96 (1 entry, 1 announced)
        *L2CKT  Preference: 7
                Next hop: via so-1/1/2.0 weight 1, selected
                Label-switched-path my-lsp
                Label operation: Push 100000[0]
                Protocol next hop: 10.245.255.63 Indirect next hop: 86af000 296
                State: <Active Int>
                Local AS:    99
                Age: 10:21
                Task: l2 circuit
                Announcement bits (1): 0-LDP
                AS path: I
                VC Label 100000, MTU 1500, VLAN ID 512

show route extensive (Access Route)

user@host> show route 13.160.0.102 extensive 
inet.0: 39256 destinations, 39258 routes (39255 active, 0 holddown, 1 hidden)
13.160.0.102/32 (1 entry, 1 announced)
TSI:
KRT in-kernel 13.160.0.102/32 -> {13.160.0.2}
OSPF area : 0.0.0.0, LSA ID : 13.160.0.102, LSA type : Extern
        *Access Preference: 13
                Next-hop reference count: 78472
                Next hop: 13.160.0.2 via fe-0/0/0.0, selected
                State: <Active Int>
					  Age: 12 
                Task: RPD Unix Domain Server./var/run/rpd_serv.local
                Announcement bits (2): 0-KRT 1-OSPFv2 
                AS path: I

show route extensive (Route Reflector)

user@host> show route extensive 
1.0.0.0/8 (1 entry, 1 announced)

TSI:
KRT in-kernel 1.0.0.0/8 -> {indirect(40)}
        *BGP    Preference: 170/-101
                Source: 192.168.4.214
                Protocol next hop: 207.17.136.192 Indirect next hop: 84ac908 40
                State: <Active Int Ext>
                Local AS: 10458 Peer AS: 10458
                Age: 3:09       Metric: 0       Metric2: 0
                Task: BGP_10458.192.168.4.214+1033
                Announcement bits (2): 0-KRT 4-Resolve inet.0
                AS path: 3944 7777 I <Originator>
                Cluster list:  1.1.1.1
                Originator ID: 10.255.245.88
                Communities: 7777:7777
                Localpref: 100
                Router ID: 4.4.4.4
                Indirect next hops: 1
                        Protocol next hop: 207.17.136.192 Metric: 0 
                        Indirect next hop: 84ac908 40
                        Indirect path forwarding next hops: 0
                                Next hop type: Discard
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