Term
At what layer of the OSI model does CDP work with?
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Definition
CDP is a L2 protocol, enabled by default on Cisco devices.
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Term
What frame type must be used in order for a device to be able to work with CDP?
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Definition
CDP runs on all media that supports the Subnetwork Access Protocol (SNAP) frame type.
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Term
What is the multicast MAC address used by CDP to send out its advertising messages?
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Definition
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Term
What command is used to display information about neighboring CDP-enabled devices?
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Definition
show cdp neighbor [detail]
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Term
What command enables or disables CDP globally on a switch using ISO? CatOS?
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Definition
IOS: [no] cdp run CatOS: set cdp [enable | disable]
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Term
What command enables or disables CDP on a particular port of a switch using IOS? CatOS? |
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Definition
IOS: [no] cdp enable CatOS: set cdp [enable | disable] mod/port
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Term
What command will specify the voice VLAN so that CDP can send it in its packet to the IP phone using IOS? CatOS? |
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Definition
IOS: switchport voice vlan vlan-id CatOS: set port auxiliaryvlan mod/port vlan-id
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Term
Which Cisco OS supports Multiple Default Gateways?
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Definition
| MDG feature is available exclusively to the Cisco CatOS-based Catalyst switches |
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Term
How often does a switch ping its default gateway to verify that it is still available?
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Definition
Every 10 seconds. If it becomes unavailable, it automatically routes to a backup gateway |
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Term
What command enables or disables the MDG feature?
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Definition
set feature mdg [enable | disable]
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Term
What command explicitly configured a default gateway as the primary gateway?
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Definition
| set ip route default ip-of-gateway primary |
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Term
Describe how MAC address notification works?
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Definition
MAC address notification works by sending SNMP traps from the switch to a management system upon learning of one or more new MAC addresses on an access port.The information contained in the trap includes the specific port number or the user and the newly learned MAC addresses
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Term
What switches currently support the MAC address notification feature?
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Definition
| Cataylst 6500 with CatOS and 3750 with IOS |
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Term
What command enables or disables MAC address notification on a switch?
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Definition
set cam notification [enable | disable]
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Term
What command specifies the MAC address notification internal on a switch?
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Definition
| set cam notification interval time |
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Term
What command enables a switch to send MAC notification SNMP traps?
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Definition
set snmp enable macnotification
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Term
Catalyst switches classify protocols in what different groups?
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Definition
- IP - IPX - Appletalk, DECnet, and Banyan VINES - Other protocols |
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Term
What is the default port protocol configuration on a switch with regards to the different protocol classifications?
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Definition
The default port protocol configuration is "on" for IP and "auto" for other protocol groups.
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Term
What command enables protocol filtering on a switch using IOS? Using CatOS?
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Definition
IOS: protocol-filtering CatOS: set protocolfilter enable
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Term
| What command sets a protocol filter on a specific port on a switch using IOS? Using CatOS? |
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Definition
IOS: switchport protocol {appletalk | ip | ipx | group} {on | off | auto} CatOS: set port protocol interface-id {ip | appletalk | ipx | group} {on | off | auto}
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