Specifications

4-6

System Management Software Configuration Guide for Cisco IE 2000U and Connected Grid Switches

Chapter 4 Administering the Switch

Guidelines and Limitations

NTP

The switch does not have a hardware-supported clock and cannot function as an NTP master clock to

which peers synchronize themselves when an external NTP source is not available. The switch also has

no hardware support for a calendar. As a result, the ntp update-calendar and the ntp master global

configuration commands are not available.

MAC Address Table

See the “Configuring Unicast MAC Address Filtering” section on page 4-32 and “Disabling MAC

Address Learning on a VLAN” section on page 4-33.

Default Settings

Feature Default Setting

NTP

NTP Enabled on all interfaces. All interfaces receive NTP packets.

NTP authentication Disabled. No authentication key is specified.

NTP peer or server associations None configured.

NTP broadcast service Disabled; no interface sends or receives NTP broadcast packets.

NTP access restrictions No access control is specified.

NTP packet source IP address The source address is set by the outgoing interface.

System Name

System name and prompt The default switch system name and prompt is Switch.

DNS

DNS enable state Enabled.

DNS default domain name None configured.

DNS servers No name server addresses are configured.

Banners

Message-of-the-day (MOTD) and

No banners are configured.

MAC Address Table

Aging time 300 seconds.

Dynamic addresses Automatically learned.

Static addresses None configured.