[Virtual Server 1 Menu] service - Virtual Service Menu ipver - Set IP version vip - Set IP addr of virtual server vname - Set name of virtual server srcnet - Set Source Network Class dname - Set domain name of virtual server cont - Set BW Contract weight - Set Global SLB weight for virtual server avail - Set Global SLB availability for virtual server avpersis - Enable/disable GSLB availability persistence nat - Set NAT address for VIP wanlink - Set WAN Link for this virtual server addrule - Add Global SLB rule to domain remrule - Remove Global SLB rule from domain rtsrcmac - Enable/disable return to source mac address hagrp - Set HA group remhagrp - Remove virt from HA group layer3 - Enable/disable layer 3 only balancing creset - Enable/disable client connection reset for invalid VPORT ena - Enable virtual server dis - Disable virtual server del - Delete virtual server cur - Display current virtual configuration |
Command Syntax and Usage | |
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service <virtual port or name> | |
Displays the Virtual Server Service menu. The virtual port name can be a well-known port name, such as HTTP, FTP, the service number, and so on. To view this menu and the list of well-known ports, see /cfg/slb/virt <server number> /service <virtual port or application name> Virtual Server Service Configuration. Values:1, 10 – 65534 | |
ipver <IP version (v4 or v6)> | |
Specifies the type of IP address for the virtual server. Values: v4, v6 Default: v4 | |
vip <virtual server IP address for IPv4 or IPv6> | |
Specifies the IP version and address of the virtual server. The virtual server created within Alteon responds to ARPs and pings from network ports as if it was a normal server. Client requests directed to the virtual server’s IP address are balanced among the real servers available to it through real server group assignments. | |
dname <64 character domain name> | none | |
Specifies the domain name for this virtual server. When configured the domain name is used for: ![]() Additional domains can be defined on the same virtual server by attaching multiple DNS (GSLB) rules, each with a different domain. ![]() The domain name typically includes the name of the company or organization, and the Internet group code (.com, .edu, .gov, .org, and so on). For example, “foocorp.com”. It does not include the hostname portion (www, www2, ftp, and so on). To define the hostname, see the hname command in this table. To clear the dname, specify the name as none. Values: 1 – 64 alphanumeric characters. | |
vname <32 character virtual server name> | none | |
Specifies a descriptive name for the virtual server. Maximum characters: 128 | |
srcnet <32 character source network class>|none | |
Sets the source network class for this virtual server. For more information on network classes, see /cfg/slb/nwclss <network class ID> Network Class Configuration Menu. Values: 1 – 32 characters | |
cont <BWM contract (1-1024)> | |
Specifies a bandwidth management contract for traffic to the virtual server. By default, all services under this virtual server are assigned this contract. You can also define the contract at the virtual service level with the /cfg/slb/virt <number>/service <number>/cont command. All the frames that match this virtual server services are assigned this contract if the previously assigned contract for the frame has lower or equal precedence to the virtual server contract. Default: 1024 | |
weight <1-48> | |
Specifies the global server weight for the virtual server. The higher the weight value, the more connections that are directed to the local site. The response time of this site is divided by this weight before the best site is assigned to a client. Remote site response times are divided by the real server weight before selection occurs. Values: 1 – 48 Default: 1 | |
avail <1-48> | |
Specifies the Global Server Load Balancing (GSLB) priority for the virtual server. Rules that use availability as the primary metric handle failures by selecting the server with the next highest score compared to that of the server that failed, and begin forwarding requests to that server. If the server that failed becomes operational again, that server regains precedence and requests are routed to it once more. Values: 1 – 48 Default: 1 | |
avpersis enable|disable | |
Specifies whether a server that failed and became operational again, can (disable) or cannot (enable) regain precedence from the recovery server. Ensuring that the former primary server does not regain precedence is achieved by assigning the highest possible availability value (48) to the server that takes over after a failure. If this new primary server fails, its original availability value is restored and the next server in the list gains the higher precedence. Default: disable | |
nat | |
Sets the NAT address for the virtual server. For use when an Alteon sits behind a NAT device. Two Alteons, each behind a separate NAT device, connect using the IP address of each other’s NAT device for DSSP communication. When an Alteon performs DNS resolution, the DNS response must include the public (NAT) address of the service, not the internal virtual IP address. When Alteons are installed between NAT devices: ![]() ![]() | |
wanlink | |
Specifies the WAN Link via which this virtual server can be accessed, when the application can be accessed via multiple WAN links (multihoming). WAN link load balancing enables Alteon to provide gigabit connectivity from corporate resources to multiple ISP links to the Internet. Alteon acts as a front-end to the WAN links, interpreting user session requests and distributing them among the available WAN links. | |
addrule <rule, 1-2048> | |
Adds a GSLB rule to the virtual server domain. A DNS rule must always be selected to define the metrics Alteon uses to select a site. Additional DNS rules can be selected to allow for: ![]() ![]() Note: The maximum number of rules that you can configure depends on the type of platform and the number of CUs configured, as follows: ![]() ![]() ![]() ![]() ![]() Default: rule 1 | |
remrule <rule, 1-2048> | |
Removes a GSLB rule from the domain. | |
rtsrcmac disable|enable | |
Specifies how to forward response traffic to the client. Values: ![]() ![]() Default: disable Note: When rtsrcmac is enabled, you must enable Direct Access Mode (DAM) in a virtual server service configuration (/cfg/slb/ virt <server id>/service <virtual port or application name>/direct ena). For a service with layer3 enabled, make sure that rtsrcmac is disabled. | |
hagrp | |
Sets the high availability service group for this virtual service. | |
remhagrp | |
Removes this virtual service from a high availability service group. | |
layer3 <enable|disable> | |
Normally, use the client IP address with the client Layer 4 port number to produce a session identifier. When enabled, Alteon uses only the client IP address as the session identifier. This option is necessary for some server applications where state information about the client system is divided across different simultaneous connections, and also in applications where TCP fragments are generated. If the real server to which the client is assigned becomes unavailable, the Layer 4 software allows the client to connect to a different server. Values: ![]() ![]() Default: disable | |
creset enable|disable | |
Specifies whether to drop or reset connections to an invalid virtual port. Values: Default: disable | |
preempt enable|disable | |
Enables or disables GSLB failover preemption. | |
ena | |
Specifies whether to enable the virtual server. This option activates the virtual server so that it can service client requests sent to its defined IP address. Default: disable | |
dis | |
This option disables the virtual server so that it no longer services client requests. | |
del | |
This command removes this virtual server from operation and deletes it from the Layer 4 switching software configuration. Note: Use this command with caution, as it deletes the options that have been set for this virtual server. | |
cur | |
Displays the current configuration of the specified virtual server. |