Bgp debug commands – Brocade FastIron SX, FCX, and ICX Diagnostic Reference User Manual

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Brocade FastIron SX, FCX, and ICX Diagnostic Reference

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BGP debug commands

Brocade# clear arp

next hop router 10.29.29.53 ARP mapping deleted

Brocade# ARP: sent packet oper=request, src 10.29.29.111 0000.0076.2c80: dst

10.29.29.53 0000.0000.0000: Port v29

ARP: sent packet oper=request, src 10.200.200.111 0000.0076.2c80: dst

10.200.200.45 0000.0000.0000: Port v2000

ARP: sent packet oper=request, src 10.30.30.111 0000.0076.2c80: dst 10.30.30.31

0000.0000.0000: Port v300

ARP: sent packet oper=request, src 10.20.67.111 0000.0076.2c80: dst 10.20.10.11

0000.0000.0000: Port mgmt1

debug ip arp inspection

Syntax: [no] debug ip arp inspection

This command enables the ARP inspection debugging.

Brocade# debug ip arp inspection

ARP: inspection debugging is on

RX: rcvd ARP packet, brd 1, us 0, vlan 14 port 5/1/2

ARP: rcvd packet oper=request, src 10.3.3.13 0000.009d.8c69: dst 10.3.3.1

0000.0000.0000: Port e5/1/2

ARP: REQ inspection pass, 10.3.3.13->10.3.3.1, port 5/1/2

BGP debug commands

The following debug ip bgp commands display information about Border Gateway Protocol (BGP) IP
transactions.

debug ip bgp

Syntax: [no] debug ip bgp neighbor_ip_address

This command enables common BGP debugging information to be displayed for all virtual routing
and forwarding events (VRFs) or for a specific VRF. The neighbor_ip_address variable refers to the
IP address of the immediate neighbor.

Brocade# debug ip bgp 10.1.34.10 updates

BGP: neighbor 10.1.34.10 debugging is on

Brocade# BGP: 10.1.34.10 rcv UPDATE w/attr: Origin=IGP

AS_PATH=AS_CONFED_SEQUENCE(3) 64519 NextHop=10.1.34.10 MED=0 LOCAL_PREF=100

BGP: 10.1.34.10 rcv UPDATE 10.1.22.0/24

BGP: 10.1.34.10 rcv UPDATE w/attr: Origin=IGP AS_PATH=AS_CONFED_SEQUENCE(3) 64519

NextHop 10.1.34.10 MED=0 LOCAL_PREF=100

BGP: 10.1.34.10 rcv UPDATE 10.1.23.0/24

debug ip bgp dampening

Syntax: [no] debug ip bgp dampening

This command displays information about dampening process configurations, route penalties,
durations, restraint, and release. Command output resembles the following example.

Brocade# debug ip bgp dampening

BGP: 10.1.1.2 Decay 10.1.1.32/32, ostate , oPnlty=6805, nPnlty=840, time=2712

BGP: 10.1.1.2 reuse_list_index=258, curr_offset=45

BGP: 10.1.1.2 10.1.1.32/32 not ready, state , reuse_threshold=750,

new_index=61, offset=45