configuring a cisco 2950 switch

Ngày tải lên: 17/02/2014, 08:20

... 2002, Cisco Systems, Inc. All rights reserved. ICND v2.03-15 Summary ã STP is a bridge-to-bridge protocol used to maintain a loop-free network. ã STP establishes a root bridge, a root port, and ... listening, learning, and forwarding. ã If a change occurs to the network topology, STP maintains connectivity by transitioning some blocked ports to the forwarding state. ã RSTP significantly speeds ... when all the switch and bridge ports have transitioned to either the forwarding or the blocking state. ã When the network topology changes, switches and bridges must recompute the Spanning-Tree...

Ngày tải lên: 08/07/2013, 01:27

... terminal Router(config)#interface serial 0 Router(config-if)#shutdown %LINK-5-CHANGED: Interface Serial0, changed state to administratively down %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0, changed state ... Seria0, changed state to up %LINEPROTO-5-UPDOWN: Line Protocol on Interface Serial0, changed state to up ã Enables an interface that is administratively shut down Router#configure terminal Router(config)#interface ... ã Administratively turns off an interface Disabling or Enabling an Interface â 2002, Cisco Systems, Inc. All rights reserved. ICND v2.01-30 Summary ã From the privileged EXEC mode, you can...

Ngày tải lên: 08/07/2013, 01:27

... layout is clear and easy to navigate, and it is a major reason why these firewalls are so popular. In the following sections, we'll discuss each of the navigation buttons, and the pages available ... cause an average of about an hour of Internet downtime per year, which means that they're about 99.99% reliable. This downtime is usually due to an external circuit failure that causes an ... accidentally downloading a Trojan horse are just a few of the ways that a hacker might be able to gain access to the web based firewall management interface from the interior of− 202 The Registration...

Ngày tải lên: 29/09/2013, 13:20

... ACRONYMS AAA ABR ACF ACK ACL ACS AD ADSL ANSI API APPC ARAP ARE ARP ARPA ARPANET AS ASA ASBR ASCII ASIC ATM AUI Authentication, Authorization, and Accounting Area ... numbers, and VLAN parameters on its trunk ports to notify other switches in the management domain. VTP advertisements are sent as multicast frames. Because all switches in a management domain learn ... interface must have a logical address, typically an IP address. 1.4.1.2 Layer 2 Switching Layer 2 (Data Link) switching is hardware based, which means it uses the Media Access Control (MAC)...

Ngày tải lên: 16/10/2013, 13:15

... lab is configured as a standalone server that is a member of a workgroup. Note that it is not required that the remote ISA/VPN server be a standalone server that is a member of a workgroup and ... the Add button. In the Add Stand-alone Snap-in dialog box, select Certificates and click Add. On the This snap-in will always manage certificates for page box, select the Computer account ... be able to decrypt data using this certificate (if you remove it). Click Yes. Configuring a gateway to gateway VPN is easy using ISA Server. The reason why it’s so easy is that the Local and...

Ngày tải lên: 18/10/2013, 14:15

... with. ã Use Chapter 14, Scenarios for Final Preparation, as a last pass” strategy. After reviewing all other material, quizzes, and “Q& ;A sections at the end of each chapter, set aside time ... workplace. Table 1-2 Additional Cisco Certifications Certification Purpose, Prerequisites CCNA-WAN Basic certification for Cisco WAN switches. CCNP-WAN Intermediate certification for Cisco WAN switches. ... Inc. Proofreaders Dayna Isley Sarah Cisco Shannon Martin Indexer Larry Sweazy xiv VPI/VCI Addresses 212 NSAP Addresses 212 Inherent ATM Protocols 213 LAN Emulation (LANE) 213 LANE Components 213 LANE...

Ngày tải lên: 18/10/2013, 18:15

... known as a delimiting character. The delimiting character must surround the banner message and can be any character so long as it is not a character used within the body of the message. Router(config)#cc cc ll ll oo oo cc cc kk kk ... a delimiting character. The delimiting character must surround the banner message and can be any character so long as it is not a character used within the body of the message. Router(config)## ## bb bb aa aa nn nn nn nn ee ee rr rr ... PP PP ll ll ee ee aa aa ss ss ee ee ee ee nn nn tt tt ee ee rr rr yy yy oo oo uu uu rr rr uu uu ss ss ee ee rr rr nn nn aa aa mm mm ee ee aa aa nn nn dd dd pp pp aa a a ss ss ss ss ww ww oo oo rr rr dd dd ...

Ngày tải lên: 19/10/2013, 00:20

... VLANs. VLAN access maps can be applied to VLANs. ã Each VLAN access map can consist of one or more map sequences, each sequence with a match clause and an action clause. The match clause ... configuration. The switch also requires that only the management VLAN (VLAN1) have access to the switch via Telnet. The management VLAN1 has already been configured. Management VLAN IP address: ... particular, packet forwarding is handled by specialized hardware ASICs. A layer 3 switch does everything to a packet that a traditional router does. Reference: Building Cisco Multilayer Switched...

Ngày tải lên: 26/10/2013, 23:15

... Recall that interarea (IA) routes point to networks in different areas within the same OSPF autonomous system. Because Area 2 is a stub area, all external routes (Type 5 LSAs) have been ... a default route. Step 4 You decide that stub area configuration is not making a significant-enough impact on Area 2. Because Capetown can use the default route to its ABR for all nonlocal ... nonlocal area traffic, you decide to filter Type 3 and Type 4 interarea routes from Area 2. To do this, you must configure Area 2 as a totally stubby area, which is a Cisco proprietary feature....

Ngày tải lên: 27/10/2013, 08:15

... information about Serial interface 0 on GAD a. Enter the command show interface serial 0 on GAD. Refer to interface chart. GAD#show interface serial 0 This will show the details of interface ... interface even though a specific router may contain one. An example of this might be an ISDN BRI interface. The string in parenthesis is the legal abbreviation that can be used in IOS command ... the name and passwords for Router 1 a. On Router 1, enter the global configuration mode and configure the hostname as shown in the chart. b. Configure the console, virtual terminal and enable...

Ngày tải lên: 05/11/2013, 12:15

... hosts 命令验证新建的主机表,如下: 2500#sh hosts Default domain is not set Name/address lookup uses domain service Name servers are 255.255.255.255 Host Flags Age Type Address(es) 2501B (perm, OK) 0 IP 172.16.10.2 ... 1900S Translating “1900S”…domain server (192.168.0.23) [OK] (略) 使用 show hosts 命令验证下,如下: 2500#sh hosts Default domain is noko.com Name/address lookup uses domain service Name servers are 192.168.023 ... holdtime 命令,如下: Router#conf t Chapter9 Managing a Cisco Internetwork The Internal Components of a Cisco Router Cisco Router 的一些组件: bootstrap:存储在 ROM 中的微码(microcode)中,用来在初始化的时候启动 router,然后加载...

Ngày tải lên: 10/12/2013, 16:15

... rather than requiring you to read the entire chapter. ã Use Chapter 14, Scenarios for Final Preparation, as a “last pass” strategy. After reviewing all other material, quizzes, and “Q& ;A ... as shown. In actual configuration examples and output (not general command syntax), boldface indicates commands that are manually input by the user (such as a show command). ã Italics indicate ... workplace. Table 1-2 Additional Cisco Certifications Certification Purpose, Prerequisites CCNA-WAN Basic certification for Cisco WAN switches. CCNP-WAN Intermediate certification for Cisco WAN switches....

Ngày tải lên: 10/12/2013, 16:15

... multicast groups. 640-604 Switching 3.0 www.testking.com - 10 - LIST OF ACRONYMS AAA ABR ACF ACK ACL ACS AD ADSL ANSI API APPC ARAP ARE ARP ARPA ARPANET AS ASA ASBR ... replace routers. Layer 3 switching is all hardware-based packet forwarding, and all packet forwarding is handled by hardware ASICs. Furthermore, Layer 3 switches provide the same functionally as ... ip default-gateway ip_address These commands assign an IP address, subnet mask and a gateway to the management VLAN (VLAN1 by default) specified in the vlan_number parameter. You can check...

Ngày tải lên: 10/12/2013, 17:15

Ngày tải lên: 11/12/2013, 03:15

Ngày tải lên: 11/12/2013, 13:15

Ngày tải lên: 20/12/2013, 22:15

Ngày tải lên: 21/12/2013, 19:15

Ngày tải lên: 23/12/2013, 01:16