About 642-997 dcufi cisco press
642-997 vce
They have rich experience in predicating the 642-997 vce exam.
642-997 cost
You must muster up the courage to challenge yourself.
cisco 642-997 book
As for our study materials, we have prepared abundant exercises for you to do.
642-997 actual test
The contents of our study materials are the most suitable for busy people.
642-997 Real Exam Prep DEMO
Question 3: Refer to the exhibit.What is the consequence of configuring peer-gateway on the two vPC peers N7K-1 and N7K-2?
A. Nothing, this is the standard vPC configuration to make the feature work.
B. The downstream device detects only one of the vPC peers as its gateway.
C. The downstream device can use DMAC of N7K-1 on the link to N7K-2, and N7K-2 forwards the
packet.
D. This configuration enables the downstream device to use DHCP to obtain its default gateway.
Correct Answer: C
Explanation:
Beginning with Cisco NX-OS 4.2(1), you can configure vPC peer devices to act as the gateway even for
packets that are destined to the vPC peer device's MAC address. Use the peer-gateway command to
configure this feature.
Some network-attached storage (NAS) devices or load-balancers may have features aimed to
optimize the performances of particular applications. Essentially these features avoid performing a
routing-table lookup when responding to a request that originated form a host not locally attached to
the same subnet. Such devices may reply to traffic using the MAC address of the sender Cisco Nexus
7000 device rather than the common HSRP gateway.
Such behavior is non-complaint with some basic Ethernet RFC standards. Packets reaching a vPC
device for the non-local router MAC address are sent across the peer-link and could be dropped by
the built in vPC loop avoidance mechanism if the final destination is behind another vPC.
The vPC peer-gateway capability allows a vPC switch to act as the active gateway for packets that are
addressed to the router MAC address of the vPC peer. This feature enables local forwarding of such
packets without the need to cross the vPC peer-link. In this scenario, the feature optimizes use of the
peer-link and avoids potential traffic loss.
Configuring the peer-gateway feature needs to be done on both primary and secondary vPC peers
and is non-disruptive to the operations of the device or to the vPC traffic. The vPC peer-gateway
feature can be configured globally under the vPC domain submode.
When enabling this feature it is also required to disable IP redirects on all interface VLANs mapped
over a vPC VLAN to avoid generation of IP redirect messages for packets switched through the peer
gateway router. When the feature is enabled in the vPC domain, the user is notified of such a
requirement through an appropriate message.
Packets arriving at the peer-gateway vPC device will have their TTL decremented, so packets carrying
TTL = 1 may be dropped in transit due to TTL expire. This needs to be taken into account when the
peer-gateway feature is enabled and particular network protocols sourcing packets with TTL = 1
operate on a vPC VLAN.
Reference: http://www.cisco.com/c/en/us/td/docs/switches/datacenter/sw/4_2/nx-
os/interfaces/configuration/guide/if_nxos/if_vPC.html
642-997 dcufi pass4sure
In modern society, innovation is of great significance to the survival of a company. The new technology of the 642-997 dcufi pass4sure study materials is developing so fast. So the competitiveness among companies about the study materials is fierce. Luckily, our company masters the core technology of developing the Implementing Cisco Data Center Unified Fabric (DCUFI) study materials. No company in the field can surpass us. So we still hold the strong strength in the market. At present, our 642-997 dcufi pass4sure study materials have applied for many patents. We attach great importance on the protection of our intellectual property. What is more, our research center has formed a group of professional experts responsible for researching new technology of the 642-997 dcufi pass4sure study materials. The technology of the 642-997 dcufi pass4sure study materials will be innovated every once in a while. As you can see, we never stop innovating new version of the 642-997 dcufi pass4sure study materials. We really need your strong support.
642 997 testking
If you are the first time to prepare the 642 997 testking exam, it is better to choose a type of good study materials. After all, you cannot understand the test syllabus in the whole round. It is important to predicate the tendency of the 642 997 testking study materials if you want to easily pass the exam. Now, all complicate tasks have been done by our experts. They have rich experience in predicating the 642 997 testking exam. Then you are advised to purchase the study materials on our websites. Also, you can begin to prepare the 642 997 testking exam. You are advised to finish all exercises of our 642 997 testking study materials. In fact, you do not need other reference books. Our study materials will offer you the most professional guidance. In addition, our 642 997 testking study materials will be updated according to the newest test syllabus. So you can completely rely on our 642 997 testking study materials to pass the exam.
642-997 pass4sure
Up to now, we have successfully issued three packages for you to choose. They are PDF version, online test engines and windows software of the 642-997 pass4sure study materials. The three packages can guarantee you to pass the exam for the first time. Also, they have respect advantages. Modern people are busy with their work and life. You cannot always stay in one place. So the three versions of the 642-997 pass4sure study materials are suitable for different situations. For instance, you can begin your practice of the 642-997 pass4sure study materials when you are waiting for a bus or you are in subway with the PDF version. When you are at home, you can use the windows software and the online test engine of the 642-997 pass4sure study materials. When you find it hard for you to learn on computers, you can learn the printed materials of the 642-997 pass4sure study materials. What is more, you absolutely can afford fort the three packages. The price is set reasonably.
642 997 study guide
The number of questions of the 642 997 study guide study materials you have done has a great influence on your passing rate. As for our study materials, we have prepared abundant exercises for you to do. You can take part in the real 642 997 study guide exam after you have memorized all questions and answers accurately. Also, we just pick out the most important knowledge to learn. Through large numbers of practices, you will soon master the core knowledge of the 642 997 study guide exam. It is important to review the questions you always choose mistakenly. You should concentrate on finishing all exercises once you are determined to pass the 642 997 study guide exam.
