Pass the HP Aruba Certified Professional - Campus Access HPE7-A06 Questions and answers with ExamsMirror

The customer requires VLAN 151 to be configured as an isolated Private VLAN. A partial configuration was added, but the desired outcome wasn't achieved. We need to determine which configuration snippet should be addedbeforethe (unspecified) partial configuration to correctly set up the Private VLAN structure.

Private VLAN Configuration Fundamentals:

APrimary VLANmust be defined. This VLAN carries traffic between promiscuous ports and ports in associated secondary VLANs.

Secondary VLANs(either isolated or community) are associated with the primary VLAN.

Ports are then mapped to either the primary VLAN (promiscuous ports, typically router/firewall connections) or a secondary VLAN (host ports). Isolated ports within thesameisolated VLAN cannot communicate with each other.

Analyzing the Options (Assuming VLAN 15 is the intended Primary):

A)

vlan 15

private-vlan primary

vsx-sync

This correctly defines VLAN 15 as the Primary Private VLAN. The vsx-sync command ensures this configuration is synchronized across a VSX pair (relevant if applicable). This is the necessary prerequisite before defining VLAN 151 as an isolated secondary VLAN and associating it with VLAN 15.

B)isolated-vlan primary is incorrect syntax. The command is private-vlan primary.

C)primary-vlan isolated 151 is incorrect syntax for defining either the primary or secondary VLAN type/association within the primary VLAN context.

D)private-vlan isolated 151 within the vlan 15 context is incorrect syntax. The private-vlan isolated command belongs under the configuration of the secondary VLAN (VLAN 151 in this case).

Conclusion:Before configuring VLAN 151 as private-vlan isolated and associating it, the primary VLAN must be defined. Option A correctly shows the command (private-vlan primary) under the intended primary VLAN's configuration (vlan 15) to establish it as the primary VLAN.

Aggregate links across multiple switches -->

vsx

role primary

inter-switch-link lag 256

keepalive peer 192.168.0.1 source 192.168.0.0 vrf KA

(Snippet 4)

Establish redundant links between the aggregation and core layers -->

router ospf 1

maximum-paths 2

(Snippet 2)

Extend layer 2 across multiple sites -->

interface vxlan 1

no shutdown

source ip 10.1.0.4

(Snippet 1)

Identify individual layer 2 segments in an overlay -->

vni 11

vtep-peer 10.1.0.5

vlan 11

(Snippet 3)

Comprehensive Detailed Explanation along with All References available from related to the HPE Campus Access Switching Expert certification objectives at end of each question below:

Aggregate links across multiple switches:This requirement describes Multi-Chassis Link Aggregation (MC-LAG), where a device forms a LAG to two separate upstream switches that act as a logical pair. In AOS-CX, VSX (Virtual Switching Extension) enables this functionality. Snippet 4 shows commands related to setting up VSX (vsx, role primary, inter-switch-link, keepalive), which is the foundation for MC-LAG.

The ClearPass Event Viewer message "RADIUS authentication attempt from unknown NAD (10.10.1.10:1812)" indicates that ClearPass received a RADIUS request from the IP address 10.10.1.10, but this IP is not configured as a trusted Network Access Device (NAD) in ClearPass's network device list, or the shared secret doesn't match. The first step in troubleshooting on the switch side is to verify which source IP address the switch is actually using to send these RADIUS requests.

RADIUS Source IP:AOS-CX switches can be configured to use a specific source IP address for RADIUS packets, often using the ip source-interface radius [vrf ] command. This is important if the switch has multiple IP interfaces or uses VRFs.

Analysis of Commands:

A. show ip source-interface radius: This command directly displays the configured source interface and IP address used for RADIUS communications, allowing comparison with the IP configured in ClearPass.  

B. show aaa authentication-server radius: Shows server group configuration, not the source IP used by the switch.

C. show radius-server shared-secret: Not a standard command; secrets are usually masked in other commands.

D. show radius-server detail: Shows configured RADIUS server details but doesn't explicitly show the source IP the switch is using to originate packets.

Conclusion:To identify why ClearPass sees requests from an "unknown NAD" IP (10.10.1.10), the first step on the switch is to confirm which source IP it's using. show ip source-interface radius provides this crucial information.

The error "No more than 16 vMACs can be configured" occurs when trying to configure active-gateway on multiple SVIs on a CX 8360 VSX pair. This indicates a platform limit on the number of unique virtual MAC addresses has been reached.

Active Gateway vMACs:Each SVI configured with Active Gateway requires a virtual MAC address (vMAC). While AOS-CX can auto-generate these, doing so consumes entries from a limited hardware pool (e.g., 16 on this platform/version).

Best Practice & Solution:The recommended best practice to conserve these limited vMAC resources is to manually specify andreuse the same virtual MAC addressacross all SVIs configured with Active Gateway on that specific VSX pair. Since MAC addresses are Layer 2 local, using the same vMAC on different SVIs (different L3 subnets) does not cause conflicts within the VSX pair's operation.

Analysis of Options:

A: Limiting the number of SVIs using Active Gateway is a workaround, not a solution.

B: Changing switch profiles doesn't typically alter hardware vMAC limits.

C: Changing to a higher-end switch model might increase limits but is not the first or standard solution.

D: Reusing the same VMAC across SVIs (active-gateway ip mac ) avoids consuming a new vMAC entry for each SVI, thus staying within the platform limit. This is the standard, recommended solution.

Conclusion:The correct approach to address the vMAC limit error is to explicitly configure the same virtual MAC address for all SVIs using the Active Gateway feature on the VSX pair.

The question involves granting read-only access to a user with physical access to an AOS-CX switch. The task is to identify the correct command set.

Analysis of Options (Assumed Context):Read-only access is typically configured using AAA with a privilege level or role. Option C is assumed to include commands like:

text

Copy

aaa authentication login privilege-mode

user operator password plaintext

This assigns the “operator” role, which provides read-only access.

Option A:Incorrect. Likely uses an incorrect role or privilege level (e.g., admin).

Option B:Incorrect. May configure a role with excessive permissions or invalid syntax.

Option C:Correct. Configures a user with the “operator” role for read-only access.

Option D:Incorrect. Likely includes commands for a different access level or invalid configuration.

Why Option C is Correct:In AOS-CX, the “operator” role provides read-only access, allowing users to view configurations and status (e.g., show commands) without modifying settings. The command user operator password plaintext creates a local user with this role, and aaa authentication login privilege-mode ensures privilege levels are enforced upon login. This configuration is suitable for a user with physical access (e.g., via console or SSH), ensuring they cannot alter the switch, as per HPE Aruba Networking’s AAA security practices.

Relevance to Certification Objectives:

Authentication/Authorization (9%):Configuring AAA for user access control.

Security (10%):Implementing secure management access in customer networks.

Troubleshooting (10%):Ensuring proper user permissions for network management.

The goal is to make the adjacent router prefer routes exported by AGG-SW2 over AGG-SW1 for iBGP and eBGP routes to AS65000. Both switches use a route-map BGP-EXPORT with an ip-prefix list local-export. BGP path selection uses attributes like local preference, AS path length, and metric to determine the preferred route.

Analysis of Options:

Option A:Setting local-preference 200 affects iBGP route selection within the same AS but has no impact on eBGP peers (external AS65000), as local preference is not advertised externally.

Option B:Prepending the AS path with 65345 65345 65345 65345 increases the AS path length for routes exported by AGG-SW1, making them less preferred by the adjacent router (both iBGP and eBGP peers) compared to AGG-SW2’s routes, which have a shorter AS path.

Option C:Setting metric 200 affects the MED (Multi-Exit Discriminator), which is used for eBGP route selection within the same AS but is less influential than AS path length and not applicable for iBGP.

Option D:Incorrect syntax (set as-path without prepend) and does not achieve the desired effect.

Why Option B is Correct:BGP route selection prioritizes the shortest AS path for both iBGP and eBGP. By prepending AS 65345 multiple times to AGG-SW1’s exported routes, AGG-SW1’s routes appear less attractive due to a longer AS path, causing the adjacent router to prefer AGG-SW2’s routes. This is a standard BGP traffic engineering technique.

Relevance to Certification Objectives:

Routing (16%):Involves designing and troubleshooting BGP routing topologies, including manipulating path attributes like AS path.

Troubleshooting (10%):Includes remediating BGP routing issues by adjusting route-maps.

The question involves a minor software upgrade on a VSF (Virtual Switching Framework) stack of CX 6300M switches in the aggregation role, with CX 8325 switches in a VSX cluster as the core. The task is to identify the method for a hitless upgrade on the aggregation switches.

Analysis of Options:

Option A:Correct. VSF upgrades start with the secondary switch, followed by the primary, to ensure continuous operation without traffic disruption.

Option B:Incorrect. In-Service Software Upgrade (ISSU) is used for VSX, not VSF, and follows a different process.

Option C:Incorrect. Upgrading the primary switch first in VSF risks disrupting control plane operations.

Option D:Incorrect. ISSU is not applicable to VSF upgrades.

Why Option A is Correct:In a VSF stack, the update-software command initiates a rolling upgrade, starting with the secondary (standby) switch to ensure the primary (commander) continues handling traffic. Once the secondary is upgraded and rejoins the stack, the primary is upgraded, maintaining hitless operation. This process leverages VSF’s ability to keep member switches active during upgrades, minimizing downtime. The CX 6300M’s VSF implementation supports this hitless upgrade mechanism, as per HPE Aruba Networking documentation.

Relevance to Certification Objectives:

Network Resiliency and Virtualization (8%):Designing and troubleshooting VSF for high availability and hitless upgrades.

Troubleshooting (10%):Ensuring minimal disruption during software upgrades in campus networks.

The goal is to configure OSPF on a router so that it advertisesonlya 10.1.0.0/16 summary route for the specific SVIs (VLAN 11, 12, 13, assumed to be within the 10.1.x.x range) to its OSPF neighborswithin the same area(Area 0).

OSPF Intra-Area Behavior:A fundamental principle of OSPF (link-state protocols) is that all routers within the same area must have an identical Link State Database (LSDB) for that area. This means all routers learn about all the specific networks (Type-1 Router LSAs, Type-2 Network LSAs) within their area. OSPFv2 doesnotsupport summarizing routes in a way that hides specific network LSAs from other routerswithin the same area. Summarization occurs only at area boundaries (by ABRs using Type-3 Summary LSAs via the area range command) or for external routes redistributed into OSPF (by ASBRs using Type-5 External LSAs via the summary-address command).

Analysis of Options:

A) area 0 range 10.1.0.0/16:This command is used on an Area Border Router (ABR) to summarize routes originatingfromArea 0 when advertising theminto another area(e.g., the backbone). It does not affect LSA floodingwithinArea 0. It also includes redistribute connected, which is unrelated here.

B) summary-address 10.1.0.0/16:This command is used on an Autonomous System Boundary Router (ASBR) to summarizeexternalroutes being redistributed into OSPF. It is not used for summarizing internal OSPF routes like SVIs defined within an OSPF area.

C) & D) summary-address 10.1.0.0/16:Same issue as B; incorrect command for summarizing internal OSPF routes.

E) area 0 range 10.1.0.0/16:Similar to A, this uses the area range command. It correctly shows the SVIs configured for OSPF Area 0 first. However, like A, this command performs inter-area summarization on an ABR and does not suppress the specific LSAswithinArea 0.

Conclusion:The question asks for something that OSPFv2 cannot do: advertiseonlya summary route within the same area while suppressing specifics. Therefore, none of the configurations will achieve theexactstated outcome. However, if the question is flawed and intends to ask which configuration uses the correct command structure for summarizinginternalOSPF routes (even if only effective between areas), then the area range command is the relevant one. Both A and E use this command. Option E is slightly better structured as it shows the interfaces being added to OSPF Area 0 first. Assuming this is the intended direction despite the impossibility of the specific request, E is the most plausible choice among the given options.

The goal is to configure a Link Aggregation Group (LAG) on a VSX cluster (pair of CX 8325 switches) that connects to an Aruba 7000 series gateway undergoing Zero Touch Provisioning (ZTP). The LAG needs to support "protocol-based port redundancy" (LACP) and allow connectivity during ZTP.

VSX Requirement:Since the LAG connects to two separate physical switches operating as a VSX pair, the LAG must be configured as a Multi-Chassis LAG (MC-LAG) on the switches. This allows the gateway to form a single LAG across both upstream devices. The command multi-chassis under the interface lag context enables this.

Protocol Redundancy Requirement:"Protocol-based port redundancy" indicates that Link Aggregation Control Protocol (LACP) should be used to dynamically negotiate and manage the LAG bundle between the switches and the gateway. The command lacp mode active enables LACP in active negotiation mode.

ZTP Requirement:During ZTP, the gateway might not have its full configuration, including LACP settings, enabled immediately. To ensure the gateway can establish basic IP connectivity for ZTP (e.g., reach Activate/Central via DHCP/DNS), the switch ports should allow traffic even if LACP negotiation hasn't completed. The lacp fallback feature enables this, allowing individual LAG member ports to become active if LACP PDUs are not received from the peer.

Analyzing the Options:

A)Configures lacp mode active and lacp fallback butlacksthe multi-chassis command required for VSX.

B)Correctly configures the LAG as multi-chassis, enables lacp mode active, and enables lacp fallback. This meets all requirements.

C)Configures multi-chassis but uses potentially older or less standard syntax lacp enable and lacp fail-over instead of lacp mode active and lacp fallback.

D)Lacks the multi-chassis command and uses potentially older/less standard syntax.

Conclusion:Option B provides the complete and correct configuration using standard AOS-CX syntax to create an MC-LAG on the VSX pair with LACP enabled for redundancy and LACP fallback enabled to support gateway connectivity during ZTP.

The requirement is to secure independent network users from each other in a conference venue using Edge-1. This scenario typically calls for Private VLANs,specifically using the 'isolated' type to prevent communication between hosts within the same secondary VLAN.  

Analysis of Options:

Private VLANs consist of a primary VLAN and one or more secondary VLANs (isolated or community). Isolated ports cannot communicate with other isolated ports in the same VLAN; they can only communicate with promiscuous ports (usually the router uplink). Community ports can communicate with each other and promiscuous ports.

Option A: Configures VLAN 152 as private-vlan community.  

Option B: Configures VLAN 151 as private-vlan community.  

Option C: Defines VLAN 152 as a primary-vlan associated with itself, which isn't standard syntax/logic.  

Option D: Defines VLAN 151 as a primary-vlan associated with itself.  

The goal isisolation. None of the options directly configure an isolated VLAN. Options A and B configure community VLANs, which allow communication between users within that VLAN, contradicting the requirement. Options C and D attempt to define primary VLANs in a potentially incorrect way.

Caveat:There seems to be an issue with the provided options. Standard configuration to make VLAN 151 isolated would involve defining a primary VLAN (e.g., vlan 152 private-vlan primary) and then defining VLAN 151 as isolated (vlan 151 private-vlan isolated). Since none of the options correctly configure anisolatedVLAN, and the requirement is isolation, the question or options are likely flawed. However, if forced to interpret intent, questions sometimes test understanding of thetypesof private VLANs. Changing a VLANtocommunity type (Option B for VLAN 151) is a distinct action, even if it doesn't meet the statedisolationgoal. Without correct options for 'isolated', selecting the 'best' flawed option is difficult. Assuming the question intends to configure VLAN 151 assome typeof private secondary VLAN, Option B modifies VLAN 151's private VLAN characteristic.

Conclusion:Based on the requirement for isolation, none of the provided options are correct. However, if assuming a potential error in the question or options and needing to select the closest modification related to private VLAN types for VLAN 151, Option B is chosen tentatively, despite configuring 'community' instead of the required 'isolated'.