Citrix NetScaler SDX 11500, Руководство пользователя

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If VLAN filtering is enabled on an interface, a limited number of tagged VLANs can be used on that interface (63 tagged
VLANs on a 10G interface and 32 tagged VLANs on a 1G interface). A VPX instance receives only the packets that have the
configured VLAN IDs. Restart the NetScaler VPX instances associated with an interface if you change the state of the
VLAN filter from DISABLED to ENABLED on that interface.
VLAN filtering is enabled by default on the NetScaler SDX appliance. If you disable VLAN filtering on an interface, you can
configure up to 4096 VLANs on that interface.
Note: VLAN filtering can be disabled only on a NetScaler SDX appliance running XenServer version 6.0.
To enable VLAN filtering on an interface, click System > Interfaces. Select an interface and click VLAN Filter and enter the
details to enable VLAN filtering.
Configuring Clock Synchronization
Updated: 2014-08-24
You can configure your NetScaler SDX appliance to synchronize its local clock with a Network Time Protocol (NTP) server.
As a result, the clock on the SDX appliance has the same date and time settings as the other servers on your network. The
clock synchronization configuration does not change if the appliance is restarted, upgraded, or downgraded. However, the
configuration does not get propagated to the secondary NetScaler instance in a high availability setup.
The clock is synchronized immediately if you add a new NTP server or change any of the authentication parameters. You
can also explicitly enable and disable NTP synchronization.
Note: If you do not have a local NTP server, you can find a list of public, open access, NTP servers at the official NTP site,
http://www.ntp.org . Before configuring your NetScaler to use a public NTP server, be sure to read the Rules of
Engagement page (link included on all Public Time Servers pages).
To configure an NTP server
1. In the navigation pane, expand System, and then click NTP Servers.
2. In the details pane, do one of the following:
To add a new NTP server, click Add.
To modify settings for an existing NTP server, select the NTP server, and then click Open.
3. In the Create NTP Server or Configure NTP Server dialog box, set the following parameters:
Server Name/IP Address*— The domain name of the NTP server or the IP address of the NTP server. The name or IP
address cannot be changed for an existing NTP server.
Minimum Poll Interval— The minimum number of seconds after which the NTP server must poll the NTP messages,
expressed as a power of 2. Minimum value: 4 (2^4=16 seconds). Maximum value: 6 (2^6=64 seconds). Default: 6
(2^6=64 seconds).
Maximum Poll Interval— The maximum number of seconds after which the NTP server must poll the NTP messages,
expressed as a power of 2. Minimum value: 10 (2^10=1024 seconds). Maximum value: 17 (2^17=36 hours). Default : 10
(2^10=1024 seconds).
Key Identifier— The key to be used for the specified server. This key identifier should be added to the list of Trusted
Key IDs in the Authentication Parameters. Minimum value: 1. Maximum value: 65534.
Note: Do not add if Autokey is selected.
Autokey— Use the Autokey protocol for the specified server.
Preferred— Synchronize with this server first. Applicable if more than one server is configured.
*A required parameter