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show services sessions

Syntax

show services sessions <brief | extensive | terse><application-protocol protocol> <count> <destination-port destination-port><destination-prefix destination-prefix><interface interface-name><limit number> <protocol protocol> <service-set service-set> <source-port source-port> <source-prefix source-prefix>

Release Information

Command introduced in Junos OS Release 10.4.

Description

Display session information.

Note: On MX Series routers (with interchassis redundancy configured), the idle timeout for every flow is displayed in the show services session extensive and show services flows extensive commands.

Options

none
—

Display standard information about all sessions.

brief | extensive | terse
—

(Optional) Display the specified level of output.

application-protocol
—

(Optional) Display information about one of the following application protocols:

  • dce-rpc—Distributed Computing Environment-Remote Procedure Call protocols
  • dce-rpc-portmap—Distributed Computing Environment-Remote Procedure Call protocols portmap service
  • dns—Domain Name System protocol
  • ftp—File Transfer Protocol
  • pptp—Point-to-Point Tunneling Protocol
  • rpc—Remote Procedure Call protocol
  • rpc-portmap—Remote Procedure Call protocol portmap service
  • rtsp—Real-Time Streaming Protocol
  • rsh—Remote Shell
  • sip—Session Initiation Protocol
  • sql—SQLNet
  • talk—Talk Program
count
—

(Optional) Display a count of the matching entries.

destination-port destination-port
—

(Optional) Display information for a particular destination port. The range of values is from 0 to 65535.

destination-prefix destination-prefix
—

(Optional) Display information for a particular destination prefix.

interface interface-name
—

(Optional) Display information about a particular interface. On M Series and T Series routers, interface-name can be ms-fpc/pic/port or rspnumber. On J Series routers, interface-name is ms-pim/0/port.

limit number
—

(Optional) Maximum number of entries to display.

protocol protocol
—

(Optional) Display information about one of the following IP types:

  • number—Numeric protocol value from 0 to 255
  • ah—IPsec Authentication Header protocol
  • egp—An exterior gateway protocol
  • esp—IPsec Encapsulating Security Payload protocol
  • gre—A generic routing encapsulation protocol
  • icmp—Internet Control Message Protocol
  • icmp6—Internet Control Message Protocol version 6
  • igmp—Internet Group Management Protocol
  • ipip—IP-within-IP Encapsulation Protocol
  • ospf—Open Shortest Path First protocol
  • pim—Protocol Independent Multicast protocol
  • rsvp—Resource Reservation Protocol
  • sctp—Stream Control Transmission Protocol
  • tcp—Transmission Control Protocol
  • udp—User Datagram Protocol
service-set service-set
—

(Optional) Display information for a particular service set.

source-port source-port
—

(Optional) Display information for a particular source port. The range of values is from 0 to 65535.

source-prefix source-prefix
—

(Optional) Display information for a particular source prefix.

Required Privilege Level

view

List of Sample Output

show services sessions
show services sessions brief
show services sessions extensive
show services sessions terse
show services sessions application-protocol
show services sessions count
show services sessions destination port
show services sessions destination prefix
show services sessions interface
show services sessions protocol
show services sessions service-set
show services sessions source port
show services sessions source prefix

Output Fields

Table 1 lists the output fields for the show services sessions command. Output fields are listed in the approximate order in which they appear.

Table 1: show services sessions Output Fields

Field Name

Field Description

Interface

Name of the interface.

Session ID

Session ID that uniquely identifies the session.

ALG

Name of the application.

Flags

Session flag for the ALG:

  • 0x1—Found an existing session.
  • 0x2—Reached session or flow limit.
  • 0x3—No memory available for new sessions.
  • 0x4—No free session ID available.

IP Action

Flag indicating whether IP action has been set for the session..

Offload

Flag indicating whether the session has been offloaded to the Packet Forwarding Engine.

Asymmetric

Flag indicating whether the session is uni-directional.

Service set

Name of a service set. Individual empty service sets are not displayed.

Sessions Count

Number of sessions.

Flow or Flow Prot

Protocol used for this session.

Source

Source prefix of the flow in the format source-prefix:port. For ICMP flows, port information is not displayed.

Dest

Destination prefix of the flow. For ICMP flows, port information is not displayed.

State

Status of the flow:

  • Drop—Drop all packets in the flow without response.
  • Forward—Forward the packet in the flow without looking at it.
  • Reject—Drop all packets in the flow with response.
  • Watch—Inspect packets in the flow.
  • Bypass—Bypass packets in the flow.
  • Unknown—Unknown flow status.

Packet Direction

Direction of the flow: ingress (I), egress (O) or unknown.

Frm count

Number of frames in the flow.

Sample Output

show services sessions

user@host> show services sessions 
ms-2/0/0
Session: 293, ALG: 16, Flags: 0x0040, IP Action: no, Offload: no
UDP	    10.10.10.2:43677 ->    10.20.20.1:53    Forward  I 	      1
UDP	   10.20.20.1:53    ->        1.1.1.1:43677 Forward  O 	      1
Session: 53, ALG: 16, Flags: 0x0040, IP Action: no, Offload: no
UDP	    10.10.10.2:37494 ->    10.20.20.1:53    Forward  I 	      1
UDP	   10.20.20.1:53    ->        10.11.11.11:37494 Forward  O 	      1
Session: 66, ALG: 16, Flags: 0x0040, IP Action: no, Offload: no
UDP	    10.10.10.2:48161 ->    10.20.20.1:53    Forward  I 	      1
UDP	   10.20.20.1:53    ->        10.11.11.11:48161 Forward  O 	      1
Session: 17, ALG: 16, Flags: 0x0040, IP Action: no, Offload: no
UDP	    10.10.10.2:38908 ->    10.20.20.1:53    Forward  I 	      1
UDP	   10.20.20.1:53    ->        10.11.11.11:38908 Forward  O 	      1
Session: 42, ALG: 16, Flags: 0x0040, IP Action: no, Offload: no
UDP	    10.10.10.2:58189 ->    10.20.20.1:53    Forward  I 	      1
UDP	   10.20.20.1:53    ->        10.11.11.11:58189 Forward  O 	      1

show services sessions brief

The output for the show services flows brief command is identical to that for the show services sessions command. For sample output, see show services sessions.

show services sessions extensive

user@host> show services sessions extensive 
ms-0/1/0
Session: 2, ALG: 0, Flags: 0x0080, IP Action: no, Offload: no
NAT PLugin Data:
  NAT Action:   Translation Type - DYNAMIC NAT44
    NAT source         3.1.1.2         ->    10.10.10.127
TCP            3.1.1.2:52145 ->        4.1.1.2:23    Forward  I              22
  Byte count: 1483
  Flow role: Unknown, Timeout: 0
TCP            4.1.1.2:23    ->   10.10.10.127:52145 Forward  O              18
  Byte count: 2712
  Flow role: Unknown, Timeout: 0

show services sessions terse

user@router> show services sessions terse
ms-1/1/0
Session: 1, ALG: ftp, Flags: 0x2000, IP Action: no, Offload: no, Asymmetric: no
TCP           10.2.2.2:52138 ->       10.1.1.2:21    Forward  I              33
TCP           10.1.1.2:21    ->       10.2.2.2:52138 Forward  O              31

show services sessions application-protocol

This command has the same output for the rpc, dce-rpc, rpc-portmap and dce-rpc-portmap ALGs.

user@router> show services sessions application-protocol dce-rpc
Interface name: ms-1/1/0
Session: 8, ALG: portmapper, Flags: 0x1800, IP Action: no, Offload: no
UDP    192.168.203.198:1019  ->192.168.203.194:2049  Forward  I               4
UDP    192.168.203.194:2049  ->192.168.203.198:1019  Forward  O               4
Session: 7, ALG: portmapper, Flags: 0x1800, IP Action: no, Offload: no
UDP    192.168.203.198:954   ->192.168.203.194:613   Forward  I               1
UDP    192.168.203.194:613   ->192.168.203.198:954   Forward  O               1
Session: 6, ALG: portmapper, Flags: 0x1800, IP Action: no, Offload: no
UDP    192.168.203.198:53836 ->192.168.203.194:613   Forward  I               1
UDP    192.168.203.194:613   ->192.168.203.198:53836 Forward  O               1
Session: 5, ALG: portmapper, Flags: 0x1000, IP Action: no, Offload: no
UDP    192.168.203.198:59813 ->192.168.203.194:111   Forward  I               1
UDP    192.168.203.194:111   ->192.168.203.198:59813 Forward  O               1
Session: 4, ALG: portmapper, Flags: 0x1800, IP Action: no, Offload: no
UDP    192.168.203.198:36595 ->192.168.203.194:2049  Forward  I               1
UDP    192.168.203.194:2049  ->192.168.203.198:36595 Forward  O               1
Session: 3, ALG: portmapper, Flags: 0x1000, IP Action: no, Offload: no
UDP    192.168.203.198:56050 ->192.168.203.194:111   Forward  I               1
UDP    192.168.203.194:111   ->192.168.203.198:56050 Forward  O               1
user@router> show services sessions application-protocol dns
Interface name: ms-2/0/0
Session: 293, ALG: 16, Flags: 0x0040, IP Action: no, Offload: no
UDP	    50.50.50.2:43677 ->    60.60.60.10:53    Forward  I 	      1
UDP	   60.60.60.10:53    ->        1.1.1.1:43677 Forward  O 	      1
Session: 53, ALG: 16, Flags: 0x0040, IP Action: no, Offload: no
UDP	    50.50.50.2:37494 ->    60.60.60.10:53    Forward  I 	      1
UDP	   60.60.60.10:53    ->        1.1.1.1:37494 Forward  O 	      1
Session: 66, ALG: 16, Flags: 0x0040, IP Action: no, Offload: no
UDP	    50.50.50.2:48161 ->    60.60.60.10:53    Forward  I 	      1
UDP	   60.60.60.10:53    ->        1.1.1.1:48161 Forward  O 	      1
Session: 17, ALG: 16, Flags: 0x0040, IP Action: no, Offload: no
UDP	    50.50.50.2:38908 ->    60.60.60.10:53    Forward  I 	      1
UDP	   60.60.60.10:53    ->        1.1.1.1:38908 Forward  O 	      1
Session: 42, ALG: 16, Flags: 0x0040, IP Action: no, Offload: no
UDP	    50.50.50.2:58189 ->    60.60.60.10:53    Forward  I 	      1
UDP	   60.60.60.10:53    ->        1.1.1.1:58189 Forward  O 	      1
user@router> show services sessions application-protocol ftp
Interface name: ms-4/1/0
Session: 1, ALG: 1, Flags: 0x0040, IP Action: no, Offload: no
TCP	      30.1.1.1:32843 ->       20.1.1.1:21    Forward  I 	     26
TCP	      20.1.1.1:21    ->        1.1.1.0:32843 Forward  O 	     30
user@router> show services sessions application-protocol pptp
Interface name: ms-2/0/0
Session: 3, ALG: pptp, Flags: 0x2800, IP Action: no, Offload: no, Asymmetric: no
GRE        40.40.40.10:0     ->    15.15.15.10:0     Forward  O              21
GRE        15.15.15.10:0     ->    40.40.40.10:65000 Forward  I               0
Session: 2, ALG: pptp, Flags: 0x2800, IP Action: no, Offload: no, Asymmetric: no
GRE        15.15.15.10:0     ->    40.40.40.10:49913 Forward  I              88
GRE        40.40.40.10:49913 ->    15.15.15.10:65001 Forward  O               0
Session: 1, ALG: pptp, Flags: 0x2000, IP Action: no, Offload: no, Asymmetric: no
TCP        15.15.15.10:1511  ->    40.40.40.10:1723  Forward  I              13
TCP        40.40.40.10:1723  ->    15.15.15.10:1511  Forward  O              12
user@router> show services sessions application-protocol rtsp
Interface name: ms-0/1/0
Session: 13, ALG: rtsp, Flags: 0x0800, IP Action: no, Offload: no
UDP	       9.1.0.2:5004  ->        9.0.0.2:3989  Forward  O 	    152
UDP	       9.0.0.2:3989  ->        3.1.2.1:5004  Forward  I 	      0
Session: 9, ALG: rtsp, Flags: 0x0800, IP Action: no, Offload: no
UDP	       9.1.0.2:5004  ->        9.0.0.2:3986  Forward  O 	      3
UDP	       9.0.0.2:3986  ->        3.1.2.1:5004  Forward  I 	      0
user@router> show services sessions application-protocol rsh
Interface name: ms-2/0/0
Session: 3, ALG: 2, Flags: 0x0840, IP Action: no, Offload: no
TCP	   60.60.60.10:1023  ->     50.50.50.2:1020  Forward  O 	      4
TCP	    50.50.50.2:1020  ->    60.60.60.10:1023  Forward  I 	      3
Session: 1, ALG: 2, Flags: 0x0040, IP Action: no, Offload: no
TCP	    50.50.50.2:1021  ->    60.60.60.10:514   Forward  I 	   1331
TCP	   60.60.60.10:514   ->     50.50.50.2:1021  Forward  O 	   2485
user@router> show services sessions application-protocol sip
Interface name: ms-2/0/0
Session: 4, ALG: sip, Flags: 0x0800, IP Action: no, Offload: no
UDP           20.1.1.2:6000  ->       30.1.1.2:12682 Forward  I             246
UDP           30.1.1.2:12682 ->       70.1.1.2:6000  Forward  O               0
Session: 1, ALG: sip, Flags: 0x0000, IP Action: no, Offload: no
UDP           20.1.1.2:5060  ->       30.1.1.2:5060  Forward  I              10
UDP           30.1.1.2:5060  ->       70.1.1.2:5060  Forward  O               9
user@router> show services sessions application-protocol sql
Interface name: ms-2/0/0
Session: 3934, ALG: sqlnet, Flags: 0x0800, IP Action: no, Offload: no
TCP	    50.50.50.2:39754 ->    40.40.40.10:1408  Forward  I 	     26
TCP	   40.40.40.10:1408  ->        1.1.1.1:39754 Forward  O 	     23
user@router> show services sessions application-protocol talk
Interface name: ms-0/2/0
Session: 4, ALG: 65, Flags: 0x0800, IP Action: no, Offload: no
TCP            2.2.2.2:36888 ->        1.1.1.2:33294 Forward  O               4
TCP            1.1.1.2:33294 ->        2.2.2.2:36888 Forward  I               3
Session: 7, ALG: 65, Flags: 0x0800, IP Action: no, Offload: no
UDP            2.2.2.2:1165  ->        1.1.1.2:518   Forward  O               1
UDP            1.1.1.2:518   ->        2.2.2.2:1165  Forward  I               1
Session: 8, ALG: 65, Flags: 0x0000, IP Action: no, Offload: no
UDP            1.1.1.2:1509  ->        2.2.2.2:518   Forward  I               3
UDP            2.2.2.2:518   ->        1.1.1.2:1509  Forward  O               3
Session: 6, ALG: 0, Flags: 0x0000, IP Action: no, Offload: no
UDP            1.1.1.1:123   ->        1.1.1.2:123   Forward  O               4

show services sessions count

user@host> show services sessions count 
Interface   Service set                                          Sessions count
ms-1/1/0    ss                                                                2

show services sessions destination port

user@router> show services sessions destination-port 21
ms-1/1/0
Session: 1, ALG: ftp, Flags: 0x2000, IP Action: no, Offload: no, Asymmetric: no
TCP           10.2.2.2:52138 ->       10.1.1.2:21    Forward  I              25
TCP           10.1.1.2:21    ->       10.2.2.2:52138 Forward  O              24

show services sessions destination prefix

user@router> show services sessions destination-prefix 10.1.1.2
ms-1/1/0
Session: 1, ALG: ftp, Flags: 0x2000, IP Action: no, Offload: no, Asymmetric: no
TCP           10.2.2.2:52138 ->       10.1.1.2:21    Forward  I              25
TCP           10.1.1.2:21    ->       10.2.2.2:52138 Forward  O              24

show services sessions interface

user@router> show services sessions interface ms-1/1/0
ms-1/1/0
Session: 1, ALG: ftp, Flags: 0x2000, IP Action: no, Offload: no, Asymmetric: no
TCP           10.2.2.2:52138 ->       10.1.1.2:21    Forward  I              30
TCP           10.1.1.2:21    ->       10.2.2.2:52138 Forward  O              29

show services sessions protocol

user@router> show services sessions protocol tcp
ms-1/1/0
Session: 1, ALG: ftp, Flags: 0x2000, IP Action: no, Offload: no, Asymmetric: no
TCP           10.2.2.2:52138 ->       10.1.1.2:21    Forward  I              30
TCP           10.1.1.2:21    ->       10.2.2.2:52138 Forward  O              29

show services sessions service-set

user@router> show services sessions service-set sample
ms-1/1/0
Session: 1, ALG: ftp, Flags: 0x2000, IP Action: no, Offload: no, Asymmetric: no
TCP           10.2.2.2:52138 ->       10.1.1.2:21    Forward  I              33
TCP           10.1.1.2:21    ->       10.2.2.2:52138 Forward  O              31

show services sessions source port

user@router> show services sessions source-port 21
ms-1/1/0
Session: 1, ALG: ftp, Flags: 0x2000, IP Action: no, Offload: no, Asymmetric: no
TCP           10.2.2.2:52138 ->       10.1.1.2:21    Forward  I              33
TCP           10.1.1.2:21    ->       10.2.2.2:52138 Forward  O              31

show services sessions source prefix

user@router> show services sessions source-prefix 10.2.2.2 
ms-1/1/0
Session: 1, ALG: ftp, Flags: 0x2000, IP Action: no, Offload: no, Asymmetric: no
TCP           10.2.2.2:52138 ->       10.1.1.2:21    Forward  I              33
TCP           10.1.1.2:21    ->       10.2.2.2:52138 Forward  O              31

Published: 2013-02-20

Supported Platforms

Published: 2013-02-20

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