HP HPE7-A08 Dumps

To upgrade an HPE Aruba Networking CX 8320 VSX cluster with minimal downtime from a remote server, the correct command is:

vsx update-software scp://172.25.101.10/image vrf mgmt

Using SCP (Secure Copy Protocol) ensures secure transfer.

Specifying vrf mgmt ensures the update uses the management VRF for connectivity.

Using TFTP is less secure and not recommended for production upgrades.

The primary keyword is not valid for the vsx update-software command.

This method allows an in-service software upgrade (ISSU) with least disruption.

When deploying a new Aruba CX 8325 switch to provide gateway and routing services, the L3-apg profile (Layer 3 Aggregation Profile) should be selected instead of the factory default. This profile is designed for switches acting as aggregation or core routers, enabling Layer 3 routing capabilities and optimized configurations for such roles.

The Spine profile (factory default) is optimized for leaf/spine architectures, but may not be ideal for aggregation gateways.

Leaf and L3-core profiles are targeted for different roles.

Using the L3-apg profile helps to ensure the switch is correctly optimized for Layer 3 gateway functions.

When deploying HPE Aruba VSX switches parallel to existing HPE Comware switches, choosing a first-hop redundancy protocol compatible with both platforms is essential. VRRP (Virtual Router Redundancy Protocol) is widely supported across multiple vendors and is suitable for multi-vendor environments.

HSRP is Cisco proprietary and not supported on Aruba Comware or CX.

Active Forwarding and Active Gateway are Aruba VSX internal mechanisms, not standard first-hop redundancy protocols.

VRRP provides seamless failover and is supported in Comware and Aruba CX platforms.

Thus, VRRP is the suitable choice.

To receive a monthly report tracking available licenses and their expiration dates in Aruba Central, the Infra Inventory report should be scheduled. It provides detailed information about device inventories, including licenses and expiration.

Switch Capacity Planning focuses on resource utilization.

Resource Utilization monitors system performance.

Network report focuses on topology and health.

After enabling ARP protection, many users lose network access because ARP protection relies on DHCP snooping to build IP-to-MAC binding tables. Without DHCP snooping enabled and correctly configured, ARP inspection cannot verify ARP packets, causing legitimate traffic to be dropped.

Enabling DHCP snooping allows ARP inspection to validate ARP requests and responses.

Other options like dynamic IP lockdown, IGMP snooping, or DHCP reservations are unrelated or secondary.

In VSX architecture, the Inter-Switch Link (ISL) is implemented as a Link Aggregation Group (LAG). To ensure proper forwarding and VLAN consistency, the ISL LAG must allow all configured VLANs. This allows VSX synchronization and data forwarding across all VLANs that span the two switches.

ISL traffic is not specifically tagged with EF QoS markings by default.

ISL traffic is not encapsulated in GRE tunnels.

The ISL LAG does not automatically include all VLANs; VLANs must be allowed on the LAG explicitly.

Hence, the LAG must be configured to allow all VLANs.

The question relates to configuring port 1/1/44 on an Aruba CX 8325 switch to connect to a 2930F switch (Aruba 2930F series). The key factor is interoperability between these two devices, especially regarding link aggregation and port channel settings.

The Aruba 2930F typically uses static or LACP link aggregation with standard settings. To connect an Aruba CX 8325 port to a 2930F port, the CX configuration must align with the 2930F settings, particularly regarding:

Enabling LACP (Link Aggregation Control Protocol) on the port.

Correct VLAN tagging or trunk mode.

Matching speed and duplex settings.

From the options given, answer A corresponds to enabling LACP with appropriate trunk configuration that matches the 2930F. The other options either have mismatches in aggregation or trunking mode or missing LACP.

Comprehensive Detailed Explanation:

For live upgrading a VSX cluster, the correct procedure is to use the vsx update-software option, which allows in-service software upgrade (ISSU) with minimal disruption by upgrading switches one at a time while maintaining synchronization.

issu update-software is not a recognized command in Aruba CX.

Reloading the primary first risks service disruption.

Compatibility mode is not required prior to reboot.

Dynamic Segmentation (DS) requires certain capabilities on the switches to support user role assignment and traffic segmentation based on identity. The CX 6100 series switches do not support Dynamic Segmentation due to hardware and feature limitations. Therefore, they must be replaced with CX 6300 models, which support DS features natively.

Options involving GRE tunnels or VXLAN tunnels relate to traffic forwarding but do not enable DS on unsupported hardware.

Applying licenses does not upgrade hardware capabilities for DS.

When establishing eBGP peering between devices that are not directly connected, the TTL (Time To Live) value of the BGP packets must be increased to allow them to traverse multiple hops. This is achieved by configuring ebgp-multihop, which increases the TTL beyond the default value of 1.

next-hop-self changes the BGP next-hop attribute but is not required for multihop eBGP.

route-reflector is a BGP design feature unrelated to multihop.

address-family ipv4 external is not a standard command on Aruba CX switches.

Therefore, to successfully peer eBGP sessions across multiple hops, ebgp-multihop must be configured.

In a VSX cluster, certain configurations such as DHCP relay need to be synchronized between both nodes. To sync DHCP relay configuration from the primary to the secondary, the command:

vsx-sync dhcp-relay

must be added under the VSX configuration on the primary switch. This ensures that DHCP relay settings are pushed to the secondary member automatically.

Adding vsx-sync ip-helper relates to IP helper addresses, not DHCP relay specifically.

Adding the sync command on the secondary has no effect as synchronization originates from primary.

To capture packets on an HPE Aruba CX switch and view the output remotely in real-time, the best practice is to use a mirror session that forwards traffic to a remote device running a packet analyzer such as Wireshark. ERSPAN (Encapsulated Remote Switched Port Analyzer) allows the mirror traffic to be encapsulated in GRE and sent over an IP network to a remote monitoring station. This method ensures full packet capture with no local resource constraints and provides full visibility to the analyst.

Option B (using tcpdump on the switch) only provides summarized or limited capture locally.

Option C (mirroring to another switch port) only allows local monitoring and does not provide remote real-time viewing.

Option D (mirror to CPU and then use tshark) is less efficient and may be resource-intensive on the switch.

Therefore, configuring ERSPAN to a remote Wireshark host is the recommended and best way.

The issue is VMware vMotion traffic on VLAN 3903 failing, while other VLANs work normally. vMotion traffic requires support for larger frame sizes (jumbo frames) because vMotion packets are large and benefit from increased MTU to improve performance and reduce fragmentation.

Configuring jumbo frames on VLAN 3903 ensures that frames on this VLAN can use an MTU larger than the default 1500 bytes.

Configuring jumbo on the interface alone may not be sufficient if the VLAN itself is not set to support jumbo frames.

Setting MTU on VLAN or interface might not work unless jumbo frames are enabled.

Comprehensive Detailed Explanation:

When troubleshooting intermittent connectivity issues with known source and destination IPs, the Follow the path methodology is most suitable. This involves tracing the packet flow from source to destination step-by-step, checking each device or segment for failures.

Spot the difference compares configurations, which is less targeted here.

Divide and conquer isolates sections but follow the path is more direct for connectivity.

Top-down/bottom-up is more general troubleshooting.

When configuring OSPF on a point-to-point network type (typically a direct link between two routers), OSPF treats the link as a broadcast-less point-to-point segment.

This reduces unnecessary OSPF overhead by eliminating the need for:

DR/BDR elections (which generate LSA Type 2 advertisements for broadcast multi-access networks).

Thus, changing network type to point-to-point reduces the number of LSA Type-2 advertisements, which are used to describe the network segment in multi-access environments.

No impact on number of routes (LSA Type-3 is about inter-area routes).

The default is usually broadcast or point-to-multipoint depending on interface.

The command erase all zeroize performs a secure erase on the switch, which deletes all customer data including startup-config and stored credentials. This process can take up to an hour depending on the hardware and storage media.

It does not retain running config (Option A).

It does not restore the factory AOS-CX image (Option B).

Admin credentials are deleted as part of the secure erase (Option C is incorrect).

Therefore, this command securely wipes all data and resets the device.

When troubleshooting downloadable user roles (DUR) between Aruba CX switches and ClearPass, it is crucial to verify the Trust Anchor profile on the switch. The Trust Anchor profile contains the certificates and keys that allow secure communication and authentication with ClearPass, ensuring the switch can validate the RADIUS server and downloaded user role information.

SNMP community string (Option A) is unrelated to DUR.

User-role configuration (Option B) is important but verifying trust anchor ensures secure role downloads.

HTTPS client certificate (Option C) is not typically part of DUR authentication.

Therefore, the Trust Anchor profile must be verified.

To prevent rogue DHCP servers in a VLAN, DHCP snooping authorized-server commands are used to specify trusted DHCP servers allowed to respond.

Option A (dhcpv4-snooping trust 10.100.100.10) configures a trusted port, but it is not VLAN specific and not precise enough for this purpose.

Enabling DHCP snooping globally and on VLAN or interface (Options C and D) are prerequisites but do not prevent rogue servers unless authorized servers are defined.

Option B correctly enables an authorized DHCP server IP on VLAN 30, blocking unauthorized DHCP responses.

Using the command copy checkpoint 20240722 running-config exemplifies the Replace configuration troubleshooting methodology. This involves replacing the current running configuration with a known good checkpoint to restore proper operation.

Divide and conquer isolates faults by segment.

Top-down/Bottom-up analyzes layer by layer.

Spot the difference compares configurations.

Replacing the config is a straightforward rollback approach.

When line card LEDs do not light up, and the cards are newly installed, the best troubleshooting methodology is Divide and conquer by swapping the line cards. This method isolates the problem by testing hardware in different slots or known working units.

Spot the difference involves comparing configurations, which does not directly isolate hardware failure.

Follow the path is more suited for connectivity issues.

Replace configuration relates to software or config problems.

Hardware issues are best isolated by physically swapping components.

The multicast group address 239.0.0.1 falls within the administratively scoped multicast addresses but overlaps with the Link-Local Multicast address scope (224.0.0.0/24), which is reserved for protocol control traffic and should not be used for application multicast groups. Using an address that overlaps with the Link-Local scope can cause multicast routing and forwarding issues, leading to video streaming clients not receiving the stream.

IGMP snooping version or enabling IGMP without multicast traffic do not cause this issue.

PIM-SM discovery addresses are different multicast addresses.

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