Cisco Nexus 3000 Series Switches overview
The Cisco Nexus® 3000 Series Switches are a comprehensive portfolio of 1, 10, and
40 Gigabit Ethernet switches built from a Switch-on-a-Chip (SoC)
architecture. Introduced in April 2011, this series of switches
provides line-rate Layer 2 and 3 performance and is suitable for
Top-of-the-Rack (ToR) architecture. This series of switches has
established itself as a leader in High-Frequency Trading (HFT),
High-Performance Computing (HPC), and big data environments by
pairing high performance and low latency with innovations in
performance visibility, automation, and time synchronization.
Figure 1.
Cisco Nexus 3548 and 3524 Switch
The Cisco Nexus 3548 and 3524 have the following hardware
configuration:
● 48 fixed Enhanced Small Form-Factor Pluggable (SFP+) ports (1 or
10 Gbps); the Cisco Nexus 3524 enables only 24 ports
● Dual redundant hot-swappable power supplies
● Four individual redundant hot-swappable fans
● One 1-PPS timing port, with the RF1.0/2.3 QuickConnect connector
type*
● Two 10/100/1000 management ports
● One RS-232 serial console port
● One USB port
● Locator LED
● Locator LED button
Support for both port-side exhaust and port-side intake airflow
schemes is available. Port-side exhaust airflow is useful when the
port side of the switch sits on a hot aisle and the power supply
side sits on a cold aisle. Port-side intake airflow is useful when
the power supply side of the switch sits on a hot aisle and the
port side sits on a cold aisle.
Colored handles on each fan or power supply clearly indicate the
airflow direction, as seen in Figures 2 and 3.
Figure 2.
Cisco Nexus 3548 and 3524 with blue handles indicating port-side
exhaust airflow
Figure 3.
Cisco Nexus 3548 and 3524 with red handles indicating port-side
intake airflow
Table 1 shows the Quick Specs.
| Product Code | N3K-C3548P-XL |
| Physical | - ●48 fixed SFP+ ports (1 or 10 Gbps)
- ●Dual redundant hot-swappable power supplies
- ●Four individual redundant hot-swappable fans
- ●One 1-PPS timing port, with the RF1.0/2.3 QuickConnect connector
type
- ●One 10/100/1000-Mbps management port
- ●One RS-232 serial console port
- ●Two USB ports
- ●Locator LED
- ●Locator LED button
|
| Performance | - ●960-Gbps switching capacity
- ●Forwarding rate of 720 mpps
- ●Line-rate traffic throughput (both Layer 2 and 3) on all ports
- ●Configurable MTUs of up to 9216 bytes (jumbo frames)
|
Physical dimensions
(H x W x D) | 1.72 x 17.3 x 18.38 in. (4.36 x 43.9 x 46.7 cm) |
| Weight | 17.4 lb (7.9 kg) |
Table 2 shows the supported accessories.
| Model | Description |
| SFP-10G-SR | 10GBASE-SR SFP+ module (MMF) |
| SFP-10G-LR | 10GBASE-LR SFP+ module (single-mode fiber [SMF]) |
| SFP-10G-ER | Cisco 10GBASE-ER SFP+ module for SMF |
| GLC-TE | 1000BASE-T SFP |
| GLC-SX-MM | GE SFP, LC connector SX transceiver (MMF) |
| GLC-SX-MM D | 1000BASE-SX SFP transceiver module, MMF, 850 nm, DOM |
| NXA-FAN-30CFM-F | N2K/3K Individual Fan, Forward airflow (port side exhaust) |
| NXA-FAN-30CFM-B | N2K/3K Individual Fan, Reversed airflow (port side intake) |
| N2200-PAC-400W | N2K/3K 400W AC Power Supply, Forward airflow (port side exhaust) |
| N2200-PAC-400W-B | N2K/3K 400W AC Power Supply, Reversed airflow (port side intake) |
| N2200-PDC-400W | N2K/3K 400W DC Power Supply, Forward airflow (port side exhaust) |
| N3K-PDC-350W-B | N2K/3K 350W DC Power Supply, Reversed airflow (port side intake) |
| N3548-LAN1K9= | Nexus 3548 Layer 3 LAN Enterprise License (Requires N3K-BAS1K9
License) |
| N3548-ALGK9= | Nexus 3500 Algo Boost License |
Table 3 shows the comparison.
| Product Code | N3K-C3548P-XL | N3K-C36180YC-R |
| Ports | 48 fixed SFP+ ports (1 or 10 Gbps) | 48 SFP ports; each supports native 25, 10, or 1 Gigabit Ethernet
mode 6 QSFP28 ports; each supports native 100 Gigabit Ethernet and 4 x
25 Gigabit Ethernet modes |
Physical dimensions
(H x W x D) | 1.72 x 17.3 x 18.38 in. (4.36 x 43.9 x 46.7 cm) | 1.72 x 17.3 x 26.85 in. (4.4 x 43.9 x 68.2 cm) |
| Weight | 17.4 lb (7.9 kg) | 27.1 lb (12.3 kg) |
N3K-C3548P-XL Specification
N3K-C3548P-XL Specifications |
| Physical | 48 fixed SFP+ ports (1 or 10 Gbps) Dual redundant hot-swappable power supplies Four individual redundant hot-swappable fans One 1-PPS timing port, with the RF1.0/2.3 QuickConnect connector
type One 10/100/1000-Mbps management port One RS-232 serial console port Two USB ports Locator LED Locator LED button |
| Performance | 960-Gbps switching capacity Forwarding rate of 720 mpps Line-rate traffic throughput (both Layer 2 and 3) on all ports Configurable MTUs of up to 9216 bytes (jumbo frames) |
| Typical operating power | 112W |
| Maximum power | 213W |
| Typical heat dissipation | 383 BTUs per hr |
| Maximum heat dissipation | 727 BTUs per hr |
| Hardware specifications common to all switches |
| Mode | Normal mode | Warp mode |
| Number of MAC addresses | 64,000 | 8000 |
| Number of IPv4 unicast routes | 24,000 | 4000 |
| Number of IPv4 hosts | 64,000 | 8000 |
| Number of IPv4 multicast routes | 8000 | 8000 |
| Number of VLANS | 4096 |
| Number of ACL entries | 4096 |
| Number of spanning-tree instances | Rapid Spanning Tree Protocol (RSTP): 512 Multiple Spanning Tree (MST) Protocol: 64 |
| Number of EtherChannels | 24 |
| Number of ports per EtherChannel | 24 |
| Buffer size | 6 MB shared among 16 ports; 18 MB total |
| System memory | 16 GB |
| Boot flash memory | 16 GB |
| Number of power supplies | 2 (redundant) |
| Power supply types | · AC (forward and reversed airflow) · DC (forward and reversed airflow) |
| Input voltage | 100 to 240 VAC |
| Frequency | 50 to 60 Hz |
| Power supply efficiency | 89 to 91% at 220V |
| Cooling | Forward and reversed airflow schemes Forward airflow: Port-side exhaust (air enters through fan tray and
power supplies and exits through ports) Reversed airflow: Port-side intake (air enters through ports and
exits through fan tray and power supplies) Four individual, hot-swappable fans (3+1 redundant) |
| Dimensions (height x width x depth) | 1.72 x 17.3 x 18.38 in. (4.36 x 43.9 x 46.7 cm) |
| Weight | 17.4 lb (7.9 kg) |
| Operating temperature | 32 to 104° F (0 to 40°C) |
| Storage temperature | -40 to 158° F (-40 to 70°C) |
| Relative humidity (operating) | · 10 to85% noncondensing · Up to 5 days at maximum (85%) humidity · Recommend ASHRAE data center environment |
| Relative humidity (nonoperating) | 5 to 95% noncondensing |
| Altitude | 0 to 10,000 ft (0 to 3000m) |
