Vlans; About Vlans For Gigabit Ethernet - HP Cisco MDS 9020 - Fabric Switch Configuration Manual

Chapter 45 Configuring IPv4 for Gigabit Ethernet Interfaces
S e n d d o c u m e n t a t i o n c o m m e n t s t o m d s f e e d b a c k - d o c @ c i s c o . c o m
Use the show interface gigabitethernet command to verify if the Gigabit Ethernet interface is up.
Example 45-1 Verifying Gigabit Ethernet Connectivity

VLANs

This section describes virtual LAN (VLAN) support in Cisco MDS SAN-OS and includes the following
topics:
•
•
•

About VLANs for Gigabit Ethernet

Virtual LANs (VLANs) create multiple virtual Layer 2 networks over a physical LAN network. VLANs
provide traffic isolation, security, and broadcast control.
Gigabit Ethernet ports automatically recognize Ethernet frames with IEEE 802.1Q VLAN
encapsulation. If you need to have traffic from multiple VLANs terminated on one Gigabit Ethernet port,
configure subinterfaces—one for each VLAN.
If the IPS module or MPS-14/2 module is connected to a Cisco Ethernet switch, and you need to have
Note
traffic from multiple VLANs coming to one IPS port, verify the following requirements on the Ethernet
switch:
- The Ethernet switch port connected to the IPS module or MPS-14/2 module is configured as a trunking
port.
- The encapsulation is set to 802.1Q and not ISL, which is the default.
Use the VLAN ID as a subscription to the Gigabit Ethernet interface name to create the subinterface
name (the
OL-16184-01, Cisco MDS SAN-OS Release 3.x
switch# ping 10.100.1.25
PING 10.100.1.25 (10.100.1.25): 56 data bytes
64 bytes from 10.100.1.25: icmp_seq=0 ttl=255 time=0.1 ms
64 bytes from 10.100.1.25: icmp_seq=1 ttl=255 time=0.1 ms
64 bytes from 10.100.1.25: icmp_seq=2 ttl=255 time=0.1 ms
--- 10.100.1.25 ping statistics ---
3 packets transmitted, 3 packets received, 0% packet loss
round-trip min/avg/max = 0.1/0.1/0.1 ms
About VLANs for Gigabit Ethernet, page 45-5
Configuring the VLAN Subinterface, page 45-6
Interface Subnet Requirements, page 45-6
<slot-number>/<port-number>.<VLAN-ID>
).
Cisco MDS 9000 Family CLI Configuration Guide
VLANs
45-5