多年以来，CCIE(思科认证互联网专家)认证一直是网络职业人士梦寐以求的最高级别认证，目前全球获得该认证殊荣的人也很少。不过，现在这种情况出现了变化。思科在周一又发布了一种比CCIE级别更高的新认证--思科认证架构师(CCA)。思科试图通过CCA认证将CCIE的网络工程技能与MBA的商业才干结合起来。

在思科的CCA认证中，CCA将训练报考者与首席商务运营主管们一起工作，以将商业需求转换成有效的IT系统。 思科发言人Fred Wieller表示：“我们的研究显示，如果一家公司购买了错误的技术和服务，那么他们可能会浪费1000亿美元。”产生这种浪费的原因是主管人员对商业需求有着深刻的认识，但是对IT架构缺乏认识，或者是对IT架构有着深刻的认识，但是对商业需求缺乏认识。CCA将训练CCIE如何沟通以上两个群体。

思科新公布的CCA认证不仅花费昂贵，而且也极不容易通过。CCA认证需要花费15000美元。报考者不仅必须拥有一个CCIE或CCDE(思科认证设计专家)认证，并且需要有至少10年的相关行业的工作经验。报考者必须提出申请，然而再经过思科的严格筛选才能参加培训。一旦被允许参加培训课程，报考者必须为一系列商业需求提出一个架构解决方案。届时，考试委员会将会对培训者进行质询，培训者则需要对方案进行答辩，并进行修改。考试委员会由全球知名工程师和其它领域内的相关专家组成，成员不仅仅来自思科。

对此，Wieller表示：“这一认证将鼓励企业将网络架构视为工作职能而不是工作的一部分。”一旦被允许参加培训课程，认证程序可在数周内完成。

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Hi guys,
      I passed today CVOICE 6.0 with 930 points.There were some new questions.I don't remember them. The exam was tuff and pass4sure v4.55 (Q 50%) is not enough to pass it .
     Good luck guys！

      语音现在越来越火了，目前市场上针对CCIE Vocie的LAB资料非常少，这个ieMentor CCIE Voice WorkBook 2.0可以给备考CCIE Voice的考生带来一些帮助。

     ieMentor Voice workbook has been a great addition to our other Books portfolio. Our workbook approaches instruction in a logical manner: it starts out with various focus labs gradually increasing in complexity and is topped off with master labs that would test a true voice expert.

     The Voice workbook is an up-to-date guide to the most advanced lab topics you’ll ever experience in the real world and in the Voice lab. The Workbook will have two different components Voice Workbook v2.0 and Voice Solutions v2.0. Our new workbook v2.0 is not an updated or revised version of the previous edition. It is a completely NEW! Product. As always, it includes our superb technical support and guidance that may be required for your study.

Hello everyone,
      I passed today CIPT1 6.0 with 930 points.There were around 7 new questions.I don't remember them exactly but most of them where related to MRGL and how it is used by Cisco Unified Communication Manager.

1. Which two features can be implemented using the Cisco SDM Advanced Firewall wizard? (Choose two.)

A. DMZ support

B. custom rules

C. firewall signatures

D. application security

E. IP unicast reverse path forwarding


Answer: AB

2. What three classifications reflect the different approaches used to identify malicious traffic? (Choose three.)

A. platform based

B. signature based

C. policy based

D. regular-expression based

E. symbol based

F. anomaly based

Answer: BCF

3. Which action can be taken by Cisco IOS IPS when a packet matches a signature pattern?

A. drop the packet

B. reset the UDP connection

C. block all traffic from the destination address for a specified amount of time

D. perform a reverse path verification to determine if the source of the malicious packet was spoofed

E. forward the malicious packet to a centralized NMS where further analysis can be taken

Answer: A

4. A router interface is configured with an inbound access control list and an inspection rule. How will an inbound packet on this interface be processed?

A. It will be processed by the inbound ACL. If the packet is dropped by the ACL, then it will be processed by the inspection rule.

B. It will be processed by the inbound ACL. If the packet is not dropped by the ACL, then it will be processed by the inspection rule.

C. It will be processed by the inspection rule. If the packet matches the inspection rule, the inbound ACL will be invoked.

D. It will be processed by the inspection rule. If the packet does not match the inspection rule, the inbound ACL will be invoked.

Answer: B

5. Which statement is true about an IPsec/GRE tunnel?

A. The GRE tunnel source and destination addresses are specified within the IPsec transform set.

B. An IPsec/GRE tunnel must use IPsec tunnel mode.

C. GRE encapsulation occurs before the IPsec encryption process.

D. Crypto map ACL is not needed to match which traffic will be protected.

Answer: C

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      这次出差总体来说还算顺利，中间的过程是坎坷的，不过经过努力终于找到问题的解决办法，而且很好用，这令我很高兴，终于知道什么叫做绝处逢生了！至于什么问题就不在此说明，总之是用MPLS QOS的三种模式解决的，把这三种模式贴出来已提醒自己并和大家分享。
    在MPLS VPN网络上，运营商往往需要在边缘路由器上做出一个选择，就是是否信任上行流量已经携带的优先级信息，此时，华为提供了三种不同的MPLS COS（Class of Service，业务类型）处理模式，以备运营商灵活选择。如图1：

                                       图1：MPLS COS的三种处理模式
1. uniform模式：当运营商认为可以完全信任CE侧流量携带过来的QoS参数时，可以采用Uniform模式，这时PE将CE侧携带上来的报文的COS值直接复制到MPLS外层标签的EXP字段中，从而保证在Core中给予同样的QoS保证。

2. pipe模式：当运营商完全不关心CE侧用户设置的QoS参数时，就忽略用户携带的QoS参数，在PE上为MPLS外层标签的EXP字段重新赋值，结果是从ingress边缘路由器到egress边缘路由器，都按照运营商的意愿进行Core上的QoS调度，直到将流量送出Core之后，报文再根据其原来携带的COS值转发。

3. short-pipe模式：这是对pipe模式的改进，在进入Core的时候，和pipe做相同的处理，只是在egress端的倒数第二跳，就完成了QoS参数的恢复，换言之，从ingress边缘路由器到egress的倒数第二跳路由器，全部按照运营商的意愿进行QoS调度，到了egress边缘路由器上，就已经按照用户原来自己携带的QoS参数进行调度了。