Default TCP TTL for X450e-48p

  • 0
  • 1
  • Question
  • Updated 3 years ago
  • Answered
Default TCP TTL for X450e-48p
Photo of Sidney Yoder

Sidney Yoder

  • 190 Points 100 badge 2x thumb

Posted 3 years ago

  • 0
  • 1
Photo of Patrick Voss

Patrick Voss, Alum

  • 11,744 Points 10k badge 2x thumb
IP TTL default for any EXOS switch is 64.
Photo of Sidney Yoder

Sidney Yoder

  • 190 Points 100 badge 2x thumb
64 what? ms or sec or min? 
Photo of Patrick Voss

Patrick Voss, Alum

  • 11,744 Points 10k badge 2x thumb
TTL is measured in hops. So anytime the packet is routed.
Photo of Taykin Izzet

Taykin Izzet , Employee

  • 3,246 Points 3k badge 2x thumb
Sidney, You can also perform an SNMP get against OID 1.3.6.1.2.1.4.2.0 to get the default ttl value or ping an interface on the switch.

X450e-48p.12 # show snmp get 1.3.6.1.2.1.4.2.0
mib_2.4.2.0 = 64

* X450e-48p.14 # ping 11.11.11.11
Ping(ICMP) 11.11.11.11: 4 packets, 8 data bytes, interval 1 second(s).
16 bytes from 11.11.11.11: icmp_seq=0 ttl=64 time=1.060 ms
16 bytes from 11.11.11.11: icmp_seq=1 ttl=64 time=10 ms
16 bytes from 11.11.11.11: icmp_seq=2 ttl=64 time=0.335 ms
16 bytes from 11.11.11.11: icmp_seq=3 ttl=64 time=8.085 ms
(Edited)
Photo of Sidney Yoder

Sidney Yoder

  • 190 Points 100 badge 2x thumb
reason for my questions, a consulting company that helped us migrate to dynamics 2013, is noticing that when they run a query from the server the report is generated. however when the client runs the report the hour glass just spins because the TCP connection either time-out or was closed. client - extremeSW - ospf (54ms) to our coreSW - FW which the vlan is behind the FW. The Fortigate FW's default TCP time-out is 60min. Trying to determine where it is dropped, i guess I need to fire up Wireshark.