Brocade FastIron SX, FCX, and ICX Diagnostic Reference - Manual (Page 131)

Brocade FastIron SX, FCX, and ICX Diagnostic Reference 119
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DHCPv6 debug commands
5
DHCPv6 debug commands
This section describes the debug commands used for troubleshooting issues related to Dynamic
Host Configuration Protocol for IPv6 (DHCPv6) relay agent and snooping activity.
debug ipv6 dhcp relay
Syntax: [no] debug ipv6 dhcp relay
This command displays debug information related to DCHPv6 relay agent. The following ouput will
be displayed when you enable the DHCPv6 relay agent on the Ethernet interface 8/2.
Brocade# debug ipv6 dhcp relay
DHCP6: dhcp6_relay enabled on port ethernet 8/2
debug ipv6 dhcp snooping
Syntax: [no] debug ipv6 dhcp snooping
This command enables debugging of the DHCPv6 snooping activity.
Brocade# debug ipv6 dhcp snooping
Brocade(config-vif-11)# DHCPv6: snooping mapped to outgoing port 2/1/24 vlan 14
VRF 1
DHCPv6: snooping on trusted port 3/1/23, VRF 1, 2001:DB8::b->0000.007d.7a3e
debug ipv6 dhcp pd all
Syntax: [no] debug ipv6 dhcp pd all
This command enables all IPv6 Prefix Delegation (PD) debugging. Command output resembles the
following example.
Brocade# debug ipv6 dhcp pd all
DHCP6 PD: Adding route to DHCP DP table, 2001:DB8::4/64 with nexthop
fe80::100:120:30 interface e 1/1/15
DHCP6: dhcp6_sync_dhcp6_msg_with_standby called
DHCP6: dhcp6_sync_node_pack_dhcp6_msg_to_standby called
DHCP6: dhcp6_sync_node_ack_dhcp6_msg_from_standby called
DHCP6 PD: Removing route from DHCP DP table, lifetime expired, 2001:DB8::4/64 with
nexthop fe80::100:120:30 interface e 1/1/15
DHCP6: dhcp6_sync_dhcp6_msg_with_standby called
DHCP6: dhcp6_sync_node_pack_dhcp6_msg_to_standby called
DHCP6: dhcp6_sync_node_ack_dhcp6_msg_from_standby called
debug ipv6 dhcp pd flash
Syntax: [no] debug ipv6 dhcp pd flash
This command enables PD debugging for read and write to flash file. Command output resembles
the following example.
Brocade# debug ipv6 dhcp pd flash
DHCP6 PD: writing data to file dhcp6_delegated_prefixes_data
DHCP6 PD: writing data to file dhcp6_delegated_prefixes_data
DHCP6 PD: Removed file dhcp6_delegated_prefixes_data