New in Version 31.0.6.0
New Health Checks for Two-tiered Clusters
The two-tiered cluster is used in GSLB environments to extend a certain VIP over multiple Alteon instances in the data center – the first tier performs the site selection (DNS resolution) and distributes traffic at Layer 4 between second-tier Alteon instances that perform all required traffic processing.
New health checks have been added to check the availability of local and remote services using the DSSP protocol:
Cluster Front-end (clusthcfr) – This health check is used on the first tier device (front-end) to monitor the availability of local servers on each second tier device (member). This health check should be attached to the groups of real servers representing second tier devices.Cluster Member (clusthcme) –This health check must be used on the second tier device (member) to monitor the availability of local servers at each remote site. This health check should be attached to remote real servers in the second tier device.These health check objects are pre-defined and read-only.
SP CPU Pressure – Connection Suppression
When an SP process reaches 100% CPU utilization, it can have a negative impact on existing connections processing.
Alteon now addresses this issue by preventing any new sessions from being created on any individual SP once that SP has passed above 95% utilization (On Threshold). Once the SP CPU usage returns to below 90% utilization (Off Threshold) the SP CPU pressure is off and Alteon allows for new sessions to be established on that SP.
Alerts/traps are sent when the pressure mechanism is activated or deactivated on an SP.
NFR ID: US34113
Increased the Length of ID and Descriptions of Fields
The field lengths of following objects have been increased from 32 to 128:
Health Check ID Health Check DescriptionAppShape++ Script IDDNS Rule DescriptionThe field length of following object has been increased from 32 to 64:Remote Site DescriptionNFR ID: prod00255016
FTP on Any Port
Alteon FTP virtual services support FTP load balancing on standard control port 21 (and data port 20 for active transfer mode).
Starting with this version, Alteon can also support FTP load balancing on non-standard control and/or data ports. In order to bind control and data sessions together for active FTP, a new parameter, FTP Data Port, lets you define the server data port on an FTP service (control session).
In addition, the default for FTP Data Connection Persistency (FTPP) on new FTP services is now Enable.
NFR ID: prod00245892
Support Layer 4/Layer 7 Session Mirroring per Service with HA mode
Starting with this version, session mirroring is also supported in Service mode on top of Switch mode. When working in service mode, virtual services sessions active on one device are mirrored to the peer device.
NFR ID: prod00246446
Total Connections per Second (CPS) of Entire Alteon SLB via SNMP and CLI
Total Connections per Second (CPS) statistics are now available for the entire platform using CLI, WBM, or SNMP. The new device statistics (/stats/slb/dvcstats) displays current throughput, SSL (CPS), and the total CPS in one location.
NFR ID: prod00255035