18. NX-OS Troubleshooting crashes N7010A-Dist# show system internal sysmgr service name l2fm Service "l2fm" ("l2fm", 90): UUID = 0x19A, PID = 4980, SAP = 221 State: SRV_STATE_HANDSHAKED (entered at time Sat Sep 3 17:49:00 2011). Restart count: 1 Time of last restart: Sat Sep 3 17:34:05 2011. The service never crashed since the last reboot. Tag = N/A Plugin ID: 1 N7010A-Dist# show system internal sysmgr service pid 4433 Service " urib " ("urib", 173): UUID = 0x111, PID = 4433, SAP = 427 State: SRV_STATE_HANDSHAKED (entered at time Sat Sep 3 17:49:00 2011). Restart count: 1 Time of last restart: Sat Sep 3 17:33:25 2011. The service never crashed since the last reboot. Tag = N/A Plugin ID: 0
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21. Nexus 7000 line cards 16MB 1p3q1t 7.56MB/6.15MB 2q4t/1p3q4t 1 46G ~1:1 1 Nexus 7000 - 48 Port 10/100/1000 Module with XL option N7K-M148GT-11L= 16MB 1p3q1t 7.56MB/6.15MB 2q4t/1p3q4t 1 46G ~1:1 1 Nexus 7000 - 48 Port 10/100/1000, RJ-45 N7K-M148GT-11= 16MB 1p3q1t 7.56MB/6.15MB 2q4t/1p3q4t 1 46G ~1:1 1 Nexus 7000 - 48 Port GE Module with XL Option (req. SFP) N7K-M148GS-11L= 16MB 1p3q1t 7.56MB/6.15MB 2q4t/1p3q4t 1 46G ~1:1 1 Nexus 7000 - 48 Port 1G, SFP N7K-M148GS-11= 32MB 1p3q1t 1MB+65MB/80MB 8q1t/1p7q4t 2 80G 4:01 1 Nexus 7000 - 32 Port 10GbE with XL Option, 80G Fabric (req. SFP+) N7K-M132XP-12L= 32MB 1p3q1t 1MB+65MB/80MB 8q1t/1p7q4t 2 80G 4:01 1 Nexus 7000 - 32 Port 10GbE, 80G Fabric (req. SFP+) N7K-M132XP-12= 32MB 1p3q1t 96MB/80MB 8q1t/1p7q4t 2 80G 1:01 2* Nexus 7000 - 8 Port 10GbE with XL option (req. X2) N7K-M108X2-12L= 48MB 2q4t/1p3q1t NA NA 5 230G ~1.4:1 2* Nexus 7000 - 32 Port 1G/10G Ethernet Module, SFP/SFP+ N7K-F132XP-15= VOQ buffer Capacity Fabric Queuing structure Per port buffer capacity Port queuing structure Min # of Fabric modules Backplane BW Oversubscription ratio # of FE Description Part number
Packet may be process switched if next hop is not resolved.
All XL line cards requires a daughter card and license to activate feature.
When connecting Nexus 2000 to M1 32 port line card the FEX fabric ports has to be in same port group and in shared mode because the linecard has a 10G MAC that is shared among 4 port in a port-group. FEX tags the frames with VN-Tag and ASIC needs to know that VN-tag value prior to sending it to replication engine. All FEX ports remains in same VDC as their parent FEX ports. F1 series fast and low latency than M1 series line card. Switch on chip is the term used for F1 card ASIC that manages two ports. FIB TCAM are not present in F1 line card but Clasification TCAM are present. RACL is not applied on F1 series line card. No centralize arbitration and proxy routing to get Fabric access for multicast forwarding. Netflow support is only available on M1 line card 5.2 will add feature to collect netflow entry on F1 series line card. If Host A in vlan 10 connected to F1 line card wants to talk to Host B in vlan 20 connected to same line card requires L3 lookup on M1 series line card (called Proxy routing).
vpc secondary can be a PIM-DR for some vlans and primary can be PIM DR for other vlans.
Configuring peer-keepalive in management vrf is best practice because you do not need to dedicate a 10G port for peer-keepalive and management port give direct access to CPU for health check.
If firewalls are not running a routing protocol there is no problem at all. Simply have static routes, or a static default route, pointing to the HSRP VIP address on the Nexus 7000′s design works. Don’t use L2 port channel to attach routers to a vPC domain unless you statically route to HSRP address
# 1 Design rule for VPC topologies : Always dual attach devices to both vpc peers to get predictable traffic flow. For L3 connections use routing protocol’s ECMP.
N7010B-Dist# show processes cpu | in ospf 4973 173 2840 61 0.0% ospf 15655 126 58 2178 0.0% ospfv3 N7010B-Dist# sh processes cpu | grep "urib" 4396 93 1868 49 0.0% urib N7010B-Dist# sh processes cpu | grep "u.rib" 4410 74 24 3105 0.0% u6rib N7010B-Dist# attach module 1 Attaching to module 1 ... To exit type 'exit', to abort type '$.' module-1# show processes cpu | grep "ipfib" 1977 993938 6649066 149 0.0% ipfib
N7010A-Dist# show routing memory estimate routes 10000 next-hops 2 Shared memory estimates: Current max 8 MB; 5197 routes with 16 nhs in-use 1 MB; 47 routes with 1 nhs (average) Configured max 8 MB; 5197 routes with 16 nhs Estimate 4 MB; 10000 routes with 2 nhs Variable overheads: 14 bytes: per next hop per route in every MVPN enabled VRF 24 bytes: per OSPF route in every VRF where OSPF is PE-CE protocol 54 bytes: per EIGRP route in every VRF where EIGRP is PE-CE protocol
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