HP BladeSystem Networking Set 2

1.

Why should portfast be enabled on the Cisco switch ports connected to Virtual Connect?

Virtual Connect ports always block network frames if BPDUs are detected. Virtual Connect blocks untagged VLAN traffic by default if it is not enabled. Virtual Connect appears as an edge device to upstream switches. Virtual Connect auto-negotiates 10Gb/1Gb ports incorrectly when connected to Cisco switches.

2.

How does Virtual Connect affect loop prevention in a spanning tree environment?

Frames are automatically forwarded out all uplink ports, on all VLANs, without blocking. Virtual Connect automatically becomes the root switch to ensure the best network performance. Virtual Connect ports appear as server NICs to upstream switches so spanning tree is not required. Virtual Connect ports dynamically adjust root configuration parameters to influence traffic flow.

3.

How does a Layer 3 switch determine whether to forward or route data?

It compares the relative number of the egress port to the destination. It sees its address as the Layer 2 destination, but not the Layer 3 destination. Its gateway returns the packet marked as locally unreachable. Its Layer 2 forwarding table and Layer 3 routing table are cross-linked and there is no Layer 2 entry.

4.

What must you define when configuring Virtual Connect Ethernet for a server blade that can support tagged Ethernet frames in VLANs 20, 30, 50, and 60?

a vNet in Map VLAN tags mode a vNet in Tunnel VLAN tags mode a Shared Uplink Set in Map VLAN tags mode a Shared Uplink Set in Tunnel VLAN tags mode

5.

Which command do you use to view information about the status and configuration of HP Integrity virtual machines?

hpvmconfig hpvmstatus hpvm -status vmstatus

6.

How does a Layer 3 switch route a packet between directly connected VLANs?

It forwards the packet to its Layer 3 gateway, which submits the packet to its Layer 3 routing table and then forwards the packet to the proper VLAN. It submits the packet to its Layer 3 routing table to determine the destination network interface. It then builds a new Layer 2 header tagged for thedestination VLAN and forwards the packet to the destination. It submits the packet to its Layer 3 routing table to determine the destination network interface. It then uses Layer 3 forwarding to get the packet tothe destination. It removes the Layer 2 VLAN tag, adds the new VLAN tag to the existing Layer 2 header, and uses Layer 2 forwarding to get the packet to thedestination.

7.

How does HP ProCurve Distributed Trunking improve on traditional trunking technology?

It allows for more switch-to-switch links in each physical trunk. It makes switches connected by a link on both ends appear as a single switch. It provides more granular support of switch-to-switch duplexing. It eliminates the need to use Link Aggregation Control Protocol (LACP) or any other trunking protocol.

8.

What does N_Port ID virtualization do?

provides an abstraction layer between the server HBAs and the SAN provides interoperability among third-party SAN device manufacturers provides connectivity between the Virtual Connect module and the Onboard Administrator enables a single HBA port to register multiple, unique WWNs within a fabric

9.

What is considered a trunk in a Cisco switching environment?

aggregated switch links tagged VLAN port (802.1Q) tagged VLAN port plus link aggregation Shared Uplink Set plus Connection Mode Auto

10.

In a switching environment with redundant links, which technology is required for proper operation?

VLANs Cisco vPC loop prevention dynamic routing

HP BladeSystem Networking Set 2

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