User Manual v12.1.0 Instruction Manual

636 Brocade Network Advisor SAN + IP User Manual
53-1002949-01
System Monitor support on Network OS VDX platforms
18
Security monitoring
System Monitor monitors all attempts to breach your SAN security, helping you fine-tune your
security measures. If there is a security breach, System Monitor sends a RASlog alert. The following
security areas are monitored:
• Telnet violation, which occurs when a Telnet connection request reaches a secure switch from
an unauthorized IP address.
• Login violation, which occurs when a secure fabric detects a login failure.
Port statistics monitoring
System Monitor monitors port statistics on all external Gigabit Ethernet interfaces: 1 Gb, 10 Gb,
and 40 Gb. When any monitored error crosses the configured high or low thresholds, an alert is
generated.
Interface error types
Table 83 describes the interface counters that System Monitor monitors on external interfaces.
NOTE
The default settings for the above high threshold, above low threshold, below high threshold, and
below low threshold actions are None.
TABLE 83 Interface errors monitored by System Monitor
Interface error Description Port Fence
support
Threshold
defaults
CRC Align Errors The total number of frames received that had a
length (excluding framing bits but including Frame
Check Sequence (FCS) octets) of from 64 through
1518 octets. The error indicates either a bad FCS
with an integral number of octets (an FCS error) or a
bad FCS with a non-integral number of octets (an
Alignment error).
No Low 12
Buffer 0
High 300
RX Symbol Error The interface detects an undefined (invalid) symbol
received. Large symbol errors indicate a bad device,
cable, or hardware.
No Low 0
Buffer 0
High 5
RX IFG Violated A minimum-length interframe gap (IFG) between
successive frames is violated. A typical IFG is 12
bytes.
Yes Low 5
Buffer 0
High 100
RX Missing Termination
Characters
The number of frames that terminated by anything
other than the Terminate character; this includes
termination due to the Error character.
No Low 12
Buffer 0
High 300