Cyclades AlterPath BladeManager Manuál s instrukcemi stáhnout pdf (Strana 53)

Chapter 4: Administration Introduction 39

Syslog servers

Syslog servers run on operating systems that support system logging services, usually UNIX-based

servers with the syslogd configured.

Tasks for configuring syslog messages

See Chapter 4 for the tasks related to configuring syslog messages and destinations through the

Web Manager. See Chapter 7 for how to use cli to configure syslogging.

Ethernet Ports on the MergePoint 5224/5240 SP Manager

The SP manager’s two public Ethernet ports are used for connecting to the public (or management)

network. The managed private side of the SP manager is isolated from the public side to ensure

security. Access to all connected servers is consolidated through the one publicly known

IP address.

Private Ethernet ports

The SP manager is aware of only a single interface to the private network priv0 for communicating

with the target devices. priv0 sends packets to and receives packets from the private Ethernet ports.

Each private Ethernet port may be connected to one or to multiple SPs. For example an Ethernet

port may be connected to a blade manager with multiple SPs, and in those cases a single private

Ethernet port may require multiple IP addresses.

All communication among private Ethernet ports is blocked unless priv0 is the sending or

receiving port.

Public Ethernet ports

On the public side of the SP manager, the primary and secondary Ethernet ports are referred to as

eth0 and eth1. Optionally added Ethernet PC cards are referred to as eth2 and eth3, and if they are

present, they are treated as public interfaces.

Failover

The secondary Ethernet port on the SP manager can optionally be configured for failover, which is

also referred to as bonding. Failover is important for high

-availability environments where constant

accessibility is required to support mission

-critical applications. Failover automatically redirects

traffic from the primary Ethernet port to the secondary Ethernet port if the primary interface fails.

The primary Ethernet port continues to be monitored, and when it starts functioning again, traffic is

then automatically redirected back through the primary Ethernet port again. All connection sessions

continue without interruption.

With failover, both the primary and secondary Ethernet ports are assigned a single IP and single

MAC [Ethernet] address.

After failover is enabled, the bonded Ethernet interfaces are referred to as bond0.

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Cyclades AlterPath BladeManager Manuál s instrukcemi Strana 53