Description

Interface Description not visible in show interface descriptions output after adding to aggregated ethernet bundle, which is not yet created. 


<-- Interface is configured with the descriptions along with the ether-options.


user@router# show interfaces 

et-0/0/0 {

  description 100G:dxcon-ffjpqwwx;

  ether-options {

    802.3ad ae10;

  }

}


[edit]

user@router# 


<-- Intf description is not available/displayed


user@router# run show interfaces et-0/0/0                

Physical interface: et-0/0/0, Enabled, Physical link is Down

 Interface index: 1228, SNMP ifIndex: 625

 Link-level type: Ethernet, MTU: 1514, LAN-PHY mode, Speed: 400Gbps, BPDU Error: None, Loop Detect PDU Error: None, Ethernet-Switching Error: None, MAC-REWRITE Error: None, Loopback: Disabled,

 Source filtering: Disabled, Flow control: Enabled, Auto-negotiation: Disabled, Media type: Fiber

 Device flags  : Present Running Transceiver-Absent

 Interface flags: Hardware-Down SNMP-Traps Internal: 0x8000

 CoS queues   : 8 supported, 8 maximum usable queues

 Current address: b4:f9:5d:a6:a4:10, Hardware address: b4:f9:5d:a6:a4:10

 Last flapped  : 2026-04-15 12:30:49 PDT (01:21:40 ago)

 Input rate   : 0 bps (0 pps)

 Output rate  : 0 bps (0 pps)

 Active alarms : LINK

 Active defects : LINK, LOCAL-FAULT


[edit]

user@router# run show interfaces descriptions   


[edit]

user@router# 


[edit]

user@router# show interfaces           

Apr 15 13:55:24

et-0/0/0 {

  description 100G:dxcon-ffjpqwwx;

  ether-options {

    802.3ad ae10;

  }

}



<-- Now delete the ether options


[edit]

user@router# delete interfaces et-0/0/0 ether-options 

Apr 15 13:55:32


[edit]

user@router# commit 

Apr 15 13:55:34

commit complete


<-- Intf descriptions available

[edit]

user@router# run show interfaces descriptions       

Apr 15 13:55:39

Interface    Admin Link Description

et-0/0/0    up  down 100G:dxcon-ffjpqwwx


[edit]

user@router# run show interfaces et-0/0/0         

Apr 15 13:55:43

Physical interface: et-0/0/0, Enabled, Physical link is Down

 Interface index: 1228, SNMP ifIndex: 625

 Description: 100G:dxcon-ffjpqwwx

 Link-level type: Ethernet, MTU: 1514, LAN-PHY mode, Speed: 400Gbps, BPDU Error: None, Loop Detect PDU Error: None, Ethernet-Switching Error: None, MAC-REWRITE Error: None, Loopback: Disabled,

 Source filtering: Disabled, Flow control: Enabled, Auto-negotiation: Disabled, Media type: Fiber

 Device flags  : Present Running Transceiver-Absent

 Interface flags: Hardware-Down SNMP-Traps Internal: 0x8000

 CoS queues   : 8 supported, 8 maximum usable queues

 Current address: b4:f9:5d:a6:a4:10, Hardware address: b4:f9:5d:a6:a4:10

 Last flapped  : 2026-04-15 12:30:49 PDT (01:24:54 ago)

 Input rate   : 0 bps (0 pps)

 Output rate  : 0 bps (0 pps)

 Active alarms : LINK

 Active defects : LINK, LOCAL-FAULT

 PCS statistics           Seconds

  Bit errors               0

  Errored blocks             0

 Ethernet FEC Mode :          NONE

  FEC Codeword size            0

  FEC Codeword rate          0.000

 Ethernet FEC statistics       Errors

  FEC Corrected Errors          0

  FEC Uncorrected Errors         0

  FEC Corrected Errors Rate        0

  FEC Uncorrected Errors Rate       0

 PRBS Mode : Disabled

 Interface transmit statistics: Disabled

 Link Degrade :            

  Link Monitoring          : Disable


 Logical interface et-0/0/0.16386 (Index 1159) (SNMP ifIndex 717)

  Flags: Up SNMP-Traps Encapsulation: ENET2 DF

  Input packets : 0

  Output packets: 0

  Protocol multiservice, MTU: Unlimited

   Flags: None


[edit]

user@router#

Symptoms

If member interfaces are added to ae bundle and ae bundle is not created on the router, interface descriptions are not displayed on the member link of the ae bundle.

Solution

If a user configures an ethernet (et) interface and links it to an aggregated ethernet (AE) interface without the required complete AE configuration, then system identifies this as an incomplete configuration. This configuration is deferred until user applies the required full configurations.
E.g.
set interfaces et-0/0/1 description et-ingress-traffic
set interfaces et-0/0/1 ether-options 802.3ad ae0

Incomplete Configuration:
--------------------------------
-The et interface is mapped to ae0 
-However, the AE interface (ae0) itself is not fully configured

Result:
--------
-Configuration is treated as incomplete 
-It is not applied
-It (e.g. description) will not appear in "show interfaces"  CLIs output

Complete Configuration
----------------------------
When the required AE-related configurations is fully applied then it visible in operational outputs.
E.g.
set interfaces et-0/0/1 description et-ingress-traffic
set interfaces et-0/0/2 description et-egress-traffic
set chassis aggregated-devices ethernet device-count 10
set interfaces et-0/0/1 ether-options 802.3ad ae0
set interfaces et-0/0/2 ether-options 802.3ad ae0
set interfaces ae0 aggregated-ether-options minimum-links 1
set interfaces ae0 unit 0 family inet address 10.1.1.1/24

Result
--------
-The configuration is considered complete and valid 
-Successfully applied to the system 
-All attributes are visible in show command outputs

Summary
-----------
-Partial AE configurations are not applied immediately 
-The system waits until all required configurations are present 
-Only complete configurations are activated and reflected in operational outputs

Recommendation:
----------------------
Customers are advised to:
-Ensure all dependent AE configurations are fully defined before expecting them to take effect
-Note that operational outputs will reflect the expected state only after the complete configuration is applied



Modification History

2026-05-25 : Article Created