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8-7
Cisco ASDM User Guide
OL-16647-01
Chapter 8 Configuring Interfaces in Multiple Mode
Allocating Interfaces to Contexts
Enabling Jumbo Frame Support for the ASA 5580 in the System Configuration
(Multiple Mode)
A jumbo frame is an Ethernet packet larger than the standard maximun of 1518 bytes (including Layer
2 header and FCS), up to 9216 bytes. You can enable support for jumbo frames for all Gigabit and
10-Gigabit interfaces on interface adapters by increasing the amount of memory to process Ethernet
frames. Jumbo frames are not supported on the embedded Management ports. Enabling jumbo frame
support might limit the maximum use of other features, such as access lists.
To enable jumbo frame support, go to the Configuration > Interfaces pane, and click the Enable jumbo
frame support check box.
Note Changes in this setting require you to reboot the security appliance.
Note Be sure to set the MTU for each interface that needs to transmit jumbo frames to a higher value than the
default 1500; for example, set the value to 9000. See the “Configuring Interface Parameters in each
Context (Multiple Mode)” section on page 8-9 to configure the MTU within each context.
Allocating Interfaces to Contexts
To allocate interfaces to contexts, see the “Configuring Security Contexts” section on page 10-16.
Configuring Interface Parameters within each Context (Multiple
Mode)
Within each context, you configure the name, security level, and IP address of each interface. You can
also enable same security level communication. This section includes the following topics:
• Interface Parameters Overview, page 8-7
• Configuring Interface Parameters in each Context (Multiple Mode), page 8-9
• Enabling Same Security Level Communication (Multiple Mode), page 8-10
Interface Parameters Overview
This section describes interface parameters and includes the following topics:
• Default State of Interfaces, page 8-8
• Default Security Level, page 8-8