Ssh Overview - ZyXEL Communications 43222612 User Manual

Table 223 SNMP Switch Traps
OPTION OBJECT LABEL
stp STPNewRoot
zyMrstpNewRoot
zyMstpNewRoot
STPTopologyChange
zyMrstpTopologyChange
zyMstpTopologyChange
mactable zyMacForwardingTableFull
zyMacForwardingTableFullReco
vered
rmon RmonRisingAlarm
RmonFallingAlarm
classifier zyAclV2ClassifierLogNotification 1.3.6.1.4.1.890.1.15.3.1
rip zyRipExceedMaxDynamicRoute 1.3.6.1.4.1.890.1.15.3.7
ospf zyOspfExceedMaxDynamicRout
ePath

47.7.2 SSH Overview

Unlike Telnet or FTP, which transmit data in clear text, SSH (Secure Shell) is a secure communication
protocol that combines authentication and data encryption to provide secure encrypted
communication between two hosts over an unsecured network.
Figure 317 SSH Communication Example
47.7.2.1 How SSH Works
The following table summarizes how a secure connection is established between two remote hosts.
Chapter 47 Access Control
OBJECT ID DESCRIPTION
1.3.6.1.2.1.17.0.1 This trap is sent when the STP root switch changes.
1.3.6.1.4.1.890.1.15.3.5 This trap is sent when the MRSTP root switch changes.
2.3.1
1.3.6.1.4.1.890.1.15.3.5 This trap is sent when the MSTP root switch changes.
3.3.1
1.3.6.1.2.1.17.0.2 This trap is sent when the STP topology changes.
1.3.6.1.4.1.890.1.15.3.5 This trap is sent when the MRSTP topology changes.
2.3.2
1.3.6.1.4.1.890.1.15.3.5 This trap is sent when the MSTP root switch changes.
3.3.2
1.3.6.1.4.1.890.1.15.3.4 This trap is sent when more than 99% of the MAC table is
8.2.1 used.
1.3.6.1.4.1.890.1.15.3.4 This trap is sent when the MAC address switching table
8.2.2 has become normal from full.
1.3.6.1.2.1.16.0.1 This trap is sent when a variable goes over the RMON
"rising" threshold.
1.3.6.1.2.1.16.0.2 This trap is sent when the variable falls below the RMON
"falling" threshold.
This trap is sent when the Switch detects classifier log
05.4.1 information.
This trap is sent when the maximum allowed number of
4.2.1 dynamic routes learned through RIP has been
exceeded.
1.3.6.1.4.1.890.1.15.3.5 This trap is sent when the maximum allowed number of
7.3.1 dynamic routes learned through OSPF has been
exceeded.
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