Chapter 1 IntroductionIPmux-1/1EInstallation and Operation Manual

Table 1-12. Rate+User Untagged Mode

Frame Action

Switch Action

 

 

A tagged frame enters the Network port

 

 

 

Both User and Network ports members of

Switched to User port*, and tag is removed

frame’s VLAN

 

 

 

Either the User or Network port is not a

Discarded

member of frames’s VLAN

 

 

 

A tagged frame enters the User port

Discarded

 

 

An untagged frame enters the Network port (see

 

Note 2)

 

 

 

Both User and Network ports are members of

Switched to User port without changing (see

port Network port default VLAN

Note 1)

 

 

Either User or Network port is not a member

Discarded

of the Network port default VLAN

 

 

 

A untagged frame enters the User port**

 

 

 

Both User and Network ports members of

Switched to Network port*

User port default VLAN

Subject to rate limiting

 

 

Default User port VLAN ID is added with priority 0

 

 

Either User or Network port not member of

Discarded

User port default VLAN

 

 

 

Notes * The switch may decide not to pass the frame to the other port, based on its learning.

**A priority-tagged frame (frame with a tag and VLAN-ID 0) is treated just like an untagged frame. This includes rewriting the priority field with 0.

DHCP

Dynamic Host Configuration Protocol (DHCP) is a TCP/IP protocol that enables PCs and workstations to get temporary or permanent IP Addresses (out of a pool) from centrally administered servers.

DHCP is based on RFC 1531 and RFC 1533.

Lease Length

You can request an IP Address for an infinite period of time (Infinite Lease); however, you must accept the time period that is determined by the server, even if it is different from what you requested.

1-32

Functional Description

Page 61
Image 61
Cisco Systems IPMUX-1E operation manual Lease Length, Rate+User Untagged Mode