Reset Search
 

 

Article

MLX MCT - Unable to connect to hosts

« Go Back

Information

 
TitleMLX MCT - Unable to connect to hosts
Symptoms
  • MLX MCT - Unable to connect to hosts
  • short-path-forwarding enabled on ve interface
  • ARP request sent from MLX to host
  • ARP response from host received by MLX
  • ARP entry missing from ARP table:
MLX#show arp 10.10.104.171
      IP Address          MAC Address         Type        Age      Port/
                                                                                              Port (Vpls-Id, Vlan)/
                                                                                             Vpls-Id:Peer
MLX#
  • MLX not installing ARP entry for affected host (10.10.104.171):
LP-4#debug ip arp 10.10.104.171
Dec 18 15:51:58.733 IP/ARP: Add arp table entry for Address: 10.10.104.171 
Dec 18 15:51:58.733 IP/ARP: Failed to allocate arp entry for 10.10.104.171
Dec 18 15:51:59.065 IP/ARP: Add arp table entry for Address: 10.10.104.171 
Dec 18 15:51:59.065 IP/ARP: Failed to allocate arp entry for 10.10.104.171
  • total number of installed ARP entries is exactly 8192 (the system-max ip-arp default value):
MLX#show arp 
Total number of ARP entries: 8192


 
Environment
  • MLXe
  • NetIron OS 5.6.00j code
  • MCT
  • ARP Resolution
Cause
Total number of installed ARP entries reached the default maximum value of 8192.
Resolution
Increase the system-max ip-arp value above the default value of 8192:

show default values
show arp     
! 1st page
config t
system-max ip-arp 15000
end
wr mem
reload

show default values
show arp     
! 1st page


 
Additional notes

Feedback

 

Was this article helpful?


   

Feedback

Please tell us how we can make this article more useful.

Characters Remaining: 255