Cisco Nexus 7000 Series Command Reference

ip dhcp relay sub-option type cisco
To enable DHCP to use Cisco proprietary numbers 150, 152, and 151 when filling the link selection, server
ID override, and VRF name/VPN ID relay agent option-82 suboptions, use the ip dhcp relay sub-option
type cisco command. To disable DHCP’s use of these proprietary numbers, use the no form of this command.
ip dhcp relay sub-option type cisco
no ip dhcp relay sub-option type cisco
Syntax Description
This command has no arguments or keywords.
Command Default
Disabled. DHCP uses RFC numbers 5, 11, and 151 for the link selection, server ID override, and VRF
name/VPN ID suboptions, respectively.
Command Modes
Global configuration
Command History
ModificationRelease
This command was introduced.5.0(2)
Usage Guidelines
This command does not require a license.
Examples
This example shows how to enable DHCP to use Cisco proprietary numbers 150, 152, and 151 when filling
the link selection, server ID override, and VRF name/VPN ID relay agent option-82 suboptions:
switch# configure terminal
switch(config)# ip dhcp relay sub-option type cisco
switch(config)#
Related Commands
DescriptionCommand
Enables the DHCP snooping feature on the device.feature dhcp
Enables the DHCP relay agent.ip dhcp relay
Configures an IP address of a DHCP server on an
interface.
ip dhcp relay address
Enables the insertion and removal of option-82
information from DHCP packets forwarded by the
DHCP relay agent.
ip dhcp relay information option
Cisco Nexus 7000 Series Security Command Reference
402
I Commands
ip dhcp relay sub-option type cisco

Cisco Nexus 7000 Series Specifications

General

Chassis	Modular
Operating System	Cisco NX-OS
Latency	Sub-microsecond
IPv6 Support	Yes
Redundancy	Power supplies, fans, supervisors, fabric modules
Power Supply	AC or DC
Layer Support	L2, L3
Network Management	CLI, SNMP
Virtualization	VRF, vPC
Ports	10 Gigabit Ethernet, 40 Gigabit Ethernet, 100 Gigabit Ethernet, Fibre Channel, Fibre Channel over Ethernet (FCoE)
Supported Modules	Various (1G, 10G, 40G, 100G)
Features	FCoE, OTV, LISP
MPLS Support	Yes
Quality of Service (QoS)	Yes
Security Features	ACLs, Cisco TrustSec, Control Plane Policing (CoPP)
Dimensions	Varies by model
Weight	Varies by model
Operating Temperature	0 to 40°C (32 to 104°F)
Storage Temperature	-40°F to 158°F (-40°C to 70°C)
Humidity	5 to 95% noncondensing
MTBF	Varies by model
Number of Slots	Varies by model (9-slot, 10-slot, 18-slot)