Brocade FastIron SX, FCX, and ICX Diagnostic Reference - Manual (Page 69)

Brocade FastIron SX, FCX, and ICX Diagnostic Reference 57
53-1003076-02
Chapter
4
IP Diagnostics
This chapter contains the following sections:
• ARP debug commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
• BGP debug commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
• DHCP snooping debug commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
• GRE debug commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
• ICMP debug commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
• OSPF debug commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
• RIP debug commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
• NTP debug commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
• Source Guard debug commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
• SSH debug commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
• TCP debug commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
• UDP debug commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
• VRRP and VRRP-E debug commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
• Web debug commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
ARP debug commands
Address Resolution Protocol (ARP) is a standard protocol that enables a router to obtain the Media
Access Control (MAC) address of an interface on another device when the router knows the IP
address of the interface. ARP is enabled by default and cannot be disabled.
The following commands perform actions related to ARP debugging.
debug ip arp
Syntax: [no] debug ip arp ip-addr
This command activates the debuggging of ARP packets. The ip-addr variable specifies a particular
route.
Brocade# debug ip arp 10.29.29.53
ARP: packets debugging is on
Brocade# show arp
Total number of ARP entries: 3, maximum capacity: 4000
No. IP Address MAC Address Type Age Port Status
1 10.29.29.53 0000.0034.1b60 Dynamic 0 2/1/15-2/1/16 Valid
2 10.200.200.45 0000.00cf.c400 Dynamic 0 1/1/13-1/1/14 Valid
3 10.30.30.31 0000.0023.0f00 Dynamic 0 2/1/9-2/1/10 Valid