13
Managed Switches
sFlow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 457
CLI: Configure Statistical Packet-Based Sampling of Packet
Flows with sFlow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 458
Web Interface: Configure Statistical Packet-based Sampling
with sFlow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 459
Time-Based Sampling of Counters with sFlow . . . . . . . . . . . . . . . . . . . . . . . . . . 460
CLI: Configure Time-Based Sampling of Counters with sFlow. . . . . . . . . . . 460
Web Interface: Configure Time-Based Sampling of Counters
with sFlow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 461
Chapter 23 DNS
Domain Name System Concepts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 463
Specify Two DNS Servers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 463
CLI: Specify Two DNS Servers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 463
Web Interface: Specify Two DNS Servers . . . . . . . . . . . . . . . . . . . . . . . . . . . . 463
Manually Add a Host Name and an IP Address . . . . . . . . . . . . . . . . . . . . . . . . . . 464
CLI: Manually Add a Host Name and an IP Address . . . . . . . . . . . . . . . . . . . . 464
Web Interface: Manually Add a Host Name and an IP Address. . . . . . . . . . . 464
Chapter 24 DHCP Server
Dynamic Host Configuration Protocol Concepts . . . . . . . . . . . . . . . . . . . . . . . . 466
Configure a DHCP Server in Dynamic Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . 466
CLI: Configure a DHCP Server in Dynamic Mode. . . . . . . . . . . . . . . . . . . . . . 466
Web Interface: Configure a DHCP Server in Dynamic Mode . . . . . . . . . . . . 467
Configure a DHCP Server that Assigns a Fixed IP Address . . . . . . . . . . . . . . . . 469
CLI: Configure a DHCP Server that Assigns a Fixed IP Address . . . . . . . . . . 469
Web Interface: Configure a DHCP Server that Assigns a Fixed IP Address 470
Chapter 25 DHCPv6 Server
Dynamic Host Configuration Protocol Version 6 Concepts. . . . . . . . . . . . . . . . 473
CLI: Configure DHCPv6 Prefix Delegation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 474
Web Interface: Configure DHCPv6 Prefix Delegation . . . . . . . . . . . . . . . . . . . . 475
Configure a Stateless DHCPv6 Server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 479
CLI: Configure a Stateless DHCPv6 Server . . . . . . . . . . . . . . . . . . . . . . . . . . . 479
Web Interface: Configure a Stateless DHCPv6 Server . . . . . . . . . . . . . . . . . 480
Configure a Stateful DHCPv6 Server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 483
CLI: Configure a Stateful DHCPv6 Server. . . . . . . . . . . . . . . . . . . . . . . . . . . . 483
Web Interface: Configure a Stateful DHCPv6 Server . . . . . . . . . . . . . . . . . . 484
CLI: Set Up a Configuration With a DHCPv6 Server and DHCPv6 Relay . . . . 488
Configure the DHCPv6 Server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 488
Configure the DHCPv6 Relay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 489
Chapter 26 DVLANs and Private VLANs
Double VLANs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 492
CLI: Enable a Double VLAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 493
Web Interface: Enable a Double VLAN. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 493