sk182065 - The output "lldpneighbors" does not contain all the expected information of LLDP Neighbors

The output "lldpneighbors" does not contain all the expected information of LLDP Neighbors

Symptoms

The Security Gateway does not display all the LLDP (Link Layer Discovery Protocol) neighbors, even though LLDP is enabled on multiple interfaces for those neighbors.
The output of the command lldpneighbors is truncated and does not contain all the expected information of LLDP Neighbors.

[Expert@HOSTNAME:0]# lldpneighbors
Read 512 bytes.  Total size is now: 512
Buffer is: 0xFFDA28F4 and Temporary Buffer is 0xFFDA28F0.
....
Read 511 bytes.  Total size is now: 8191
Buffer is: 0xFFDA28F4 and Temporary Buffer is 0xFFDA28F0.

OpenLLDP Neighbor Info:
....
Interface 'eth1-06' has 1 LLDP Neighbors:
Neighbor 1:
      Chassis ID:         MA
      Port ID:         Interface Name - GigabitEthernetN/N/N
      Time To Live:         121 seconds
      Port Description:     GigabitEthernetN/N/N Interface
      System Name:         XXXXXXXXXXXXXXX
      System Description:     XXXXXXXXXXXXXXX
      System Capabilities:
                  Bridge/Switch (enabled)
                  Router (enabled)
                  Unknown (enabled)
                  Unknown (disabled)
      Management Address:     IPv4 - xx.xx.xx.xx (ifIndex - 2046951424) (OID: Standard LLDP MIB)
      Organizationally Specific:
      Organizationally Specific:
      Organizationally Specific:
      Organizationally Specific:
      Organizationally Specific:
      End Of LLDPDU:
Interface 'eth1-05' has 1 L <---Output stops here.

Cause

The allocated buffer size is too small to display the complete list of LLDP neighbors.

Solution

The buffer size for the " lldpneighbors" command is now increased to 8192 bytes, effective starting from:

Jumbo Hotfix Accumulator for R81.20 - starting from Take 8
Jumbo Hotfix Accumulator for R81.10 - starting from Take 95
Jumbo Hotfix Accumulator for R81 - starting from Take 82

If the buffer size is insufficient to display all LLDP neighbors, kindly please Contact Check Point Support to get a Hotfix for this issue.

The issue where the LLDP Clish " lldpneighbors" command may have a corrupted output in case of extensive data, was resolved.

The fix is included in:

Jumbo Hotfix Accumulator for R82 starting from Take 73
Jumbo Hotfix Accumulator for R81.20 starting from Take 122
Jumbo Hotfix Accumulator for R81.10 starting from Take 183

If you choose not to upgrade, Check Point can supply a Hotfix. Contact Check Point Support to get a Hotfix for this issue.

A Support Engineer will make sure the Hotfix is compatible with your environment before providing the Hotfix.

For faster resolution and verification, please collect CPinfo files from the Security Management Server and Security Gateways involved in the case.

Hotfix installation instructions:

Refer to sk168597 - How to install a Hotfix.

NOTE

This solution has been verified for the specific scenario, described by the combination of Product, Version and Symptoms. It may not work in other scenarios.