Cisco Catalyst 3750-E User Manual

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Catalyst 3750-E and 3560-E Switch Software Configuration Guide
OL-9775-08
Chapter 40 Configuring IP Unicast Routing
Configuring BGP
Nonstop Forwarding Awareness
The BGP NSF Awareness feature is supported for IPv4 in the IP services feature set. To enable this
feature with BGP routing, you need to enable Graceful Restart. When the neighboring router is
NSF-capable, and this feature is enabled, the Layer 3 switch continues to forward packets from the
Neighbor
• Advertisement interval: 30 seconds for external peers; 5 seconds for internal peers.
• Change logging: Enabled.
• Conditional advertisement: Disabled.
• Default originate: No default route is sent to the neighbor.
• Description: None.
• Distribute list: None defined.
• External BGP multihop: Only directly connected neighbors are allowed.
• Filter list: None used.
• Maximum number of prefixes received: No limit.
• Next hop (router as next hop for BGP neighbor): Disabled.
• Password: Disabled.
• Peer group: None defined; no members assigned.
• Prefix list: None specified.
• Remote AS (add entry to neighbor BGP table): No peers defined.
• Private AS number removal: Disabled.
• Route maps: None applied to a peer.
• Send community attributes: None sent to neighbors.
• Shutdown or soft reconfiguration: Not enabled.
• Timers: keepalive: 60 seconds; holdtime: 180 seconds.
• Update source: Best local address.
• Ve rs i o n : B G P Ve r s i o n 4 .
• Weight: Routes learned through BGP peer: 0; routes sourced by the local router:
32768.
NSF
1
Awareness Disabled
2
. Allows Layer 3 switches to continue forwarding packets from a neighboring
NSF-capable router during hardware or software changes.
Route reflector None configured.
Synchronization (BGP and IGP) Enabled.
Table map update Disabled.
Timers Keepalive: 60 seconds; holdtime: 180 seconds.
1. NSF = Nonstop Forwarding
2. NSF Awareness can be enabled for IPv4 on switches with the IP services feature set by enabling Graceful Restart.
Table 40-9 Default BGP Configuration (continued)
Feature Default Setting

Cisco Catalyst 3750-E Specifications

General

Series	Catalyst 3750-E
Switching Capacity	32 Gbps
Stacking Bandwidth	32 Gbps
StackWise Plus	Yes
Layer Support	Layer 3
MAC Address Table Size	12, 000 entries
RAM	256 MB
Flash Memory	64 MB
Memory	256 MB DRAM, 64 MB Flash
Operating Temperature	32 to 113°F (0 to 45°C)
Ports	48 10/100/1000 Ethernet ports
Form Factor	Rack-mountable
Jumbo Frame Support	Yes
Input Voltage	100 to 240 VAC
Storage Temperature	-25 to 70 °C
Relative Humidity	10 to 90% non-condensing