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CCNP 642-901 BSCI
Examination Time: 75 minutes (Non-English speaking countries to increase 30 minutes)
Pass-mark: 703 minutes
CCNP 642-901 test
Routing Principles
List the key information routers need to route data
Describe classful and classless routing protocols
Compare distance vector and link-state protocol operation
Describe the use of the fields in a routing table
Analyze a routing table, [...]
I, About certification:
New CCNP courses update the new the current network which be widely used by industry routing, switching, long-range technology, has been canceled out of date or no one has the relevant content, an increase of network security, voice, network operators and service The general technical support. Make updated CCNP curriculum more practical, more [...]
switch (config) # service timestamps debug datetime msec
switch (config) # service timetamps log datetime msec
More than two and debug command to log onto the time-stamp marking. Oh, the log records when useful, you can see when other people use the router. Msec accuracy is back to the second meaning
local vlan: there is only one vlan [...]
switch>(enable) set spantree backbonefast
Commands to Use for Troubleshooting The Configuration：
show spantree vlan_id - Shows the current state of the spanning tree for the ”vlan_id” entered from the perspective of the switch on which it is entered.
show spantree summary - Provides a summary of connected spanning tree ports by VLAN.
show spantree statistics [...]
I. STP introduce
Spanning-Tree Protocol (STP) is a Layer 2 (L2) protocol designed to run on bridges and switches. The specification for STP is called 802.1d. The main purpose of STP is to ensure that you do not run into a loop situation when you have redundant paths in your network. Loops are deadly to [...]
1. VTP has the following advantages:
①.’s Consistency throughout the network; (Vlan configuration consistency)
②. Backbone for the adoption of mixed media to be mapped to the high-speed VLAN trunk VLAN, so that it can be mixed media VLAN relay; (mapping of mixed media backbones)
③. VLAN on the accuracy of tracking and monitoring; (accurate tracking and monitoring)
④. Dynamics of the network’s report added to the VLAN; (Dynimic reporting and monitoring of vlans)
⑤. In the new VLAN, when the “plug and play” configuration; (Plug and play configuration of new vlan)
2. Through VTP, each switch CATALYST have contents of the following notice to its trunk port
①. Manage domain (the configured management domain)
②. Their specific parameters (known vlans and parameters associated with them) …
1. The character and excellency of VLAN
2.The create VLAN membership
There are two types of VLAN port configurations: static and dynamic.
a. Static: VLAN division is based in accordance with the port.
3. VLAN ID
Park in the network, users can be assigned to the Internet across a number of switches VLAN group, in this case. In this case, the switch…
